JP6694071B2 - Refillable dispensing system and components - Google Patents

Description

  The present disclosure relates to fluid dispensing systems and components thereof.

  Hand washing is important in many industries, including hospitality (hotels, restaurants, etc.) and healthcare (hospitals, welfare facilities for the elderly, etc.). To facilitate hand-washing, a fluid dispenser that dispenses hand-washing products has been installed in the kitchen or washroom for hand-washing by facility employees or guests, healthcare facility employees, patients, or visitors, or others. It can be installed close to the sink. Such fluid dispensers contain disposable or refillable product containers, such as cartridges or flexible bags containing supplies of the desired fluid product. The fluid can include, for example, foam, liquid, and / or gel. The dispenser is generally wall mounted and includes a hinged cover that allows opening and closing of the dispenser housing so that a supply of fluid product can be refilled or replaced. Some fluid dispensers are manually actuated by pushing and pulling a handle, bar, or button on the dispenser. Other fluid dispensers dispense automatically by sensing the presence of the user or the user's hand in proximity to the dispenser.

  The present disclosure relates generally to refillable dispensing systems and components thereof.

  In one example, the present disclosure is directed to a refillable dispensing system comprising a filling station including a docking connector, the filling station configured to dispense a chemical solution from a chemical concentrate, and a product package comprising: The equipment insert is configured to contain a quantity of the chemical concentrate, the equipment insert is configured to mate with and form a sealed connection with the docking connector, and the equipment insert is the equipment insert body. Further comprising an equipment insert body including a first hole defining a fluid passage from a first side surface of the equipment insert body to a second side surface of the equipment insert body, the equipment insert body circumferentially surrounding an interior of the fluid passage. The tubular barb having a first end and a second end, the inner wall forming a protrusion, the first end being disposed toward the first side of the fluid passage. , Equipment insertion A barb member configured to fit within the fluid passage of the body and extending from a first end to a second end; and a barb surrounding the barb first end. The check ball sealing portion disposed between the direction projection and the check ball sealing portion in the fluid passage is biased to the closed position, and the second hole is inserted between the closed position and the open position. A check ball further arranged to slide at the docking connector, and the docking connector body and the check ball from the first side of the equipment inserting body when the equipment inserting portion is fitted with the docking connector. And a filling probe configured to move the check ball from the closed position to the open position.

  The equipment insertion part main body has a ventilation hole that defines a ventilation path from the first side surface of the equipment insertion part main body to the second side surface of the equipment insertion part main body, and a ventilation probe arranged around a circumferential inner protrusion in the ventilation path. The seal may further include a tubular vent probe configured to fit within the vent passage, the vent probe biased to a closed position relative to the vent probe seal to provide a closed position and an open position. Between them is further arranged to slide in the air passage.

  In another example, the present disclosure forms a sealing port into which a fluid chemical can be filled through a sealing port in a product package, from a first side of the equipment insert body to a second side of the equipment insert body. Targeted to an equipment insert, the equipment insert body comprising an equipment insert body including a first hole defining a fluid passage, the equipment insert body further including an inner wall forming a circumferential protrusion around the interior of the fluid passage, the tubular shape The barb member has a first end and a second end, and the first end is disposed toward the first side surface of the fluid passage, and is disposed in the fluid passage of the equipment insertion portion main body. A barb member configured for mating and disposed between a second hole extending from the first end to the second end and the barb first end and the circumferential protrusion. And a check ball that is spring-biased in a closed position relative to the seal in the fluid passageway. Has a check ball, between a closed position and an open position, is further arranged to slide within the second hole. The equipment insert body further includes a peripheral edge disposed around the first side surface of the equipment insert body and a plurality of circumferential equipment tabs disposed around a sidewall of the equipment insert body, the equipment tab and the peripheral edge. Is configured to receive the neck of the product package.

  In another example, the present disclosure is directed to a refillable product package that includes an equipment insert. The refillable product package may further comprise a product bottle having a neck, with the equipment insert body fitted within the neck of the product bottle.

  In another example, the present disclosure is directed to a product package having one or more sidewalls and a neck, and a device insert forming a seal port through which the product package can be filled with a fluid chemical product. The insert part comprises an equipment insert body configured to fit in the neck of the product package in a sealable manner, and the equipment insert body is configured to connect the equipment insert body to the first side of the equipment insert body. The equipment insert body further includes an inner wall defining a fluid passage to the second side, the equipment insert body further including an inner wall forming a circumferential protrusion around the interior of the fluid passage, and the tubular barb member includes a first end. And a second end, the first end being arranged toward the first side of the fluid passage and configured to fit within the fluid passage of the equipment insert body, The barb from the first end to the second end A second hole present, a seal disposed between the first end of the barb and the circumferential projection, and a spring biased to a closed position relative to the seal in the fluid passage. A check ball, the check ball being further arranged to slide within the second hole between a closed position and an open position.

  The details of one or more examples are set forth in the accompanying drawings and the description below. Other features and advantages will be apparent from the description and drawings, and from the claims.

FIG. 5 illustrates an exemplary refillable dispensing system. 1A shows the exemplary filling station housing of FIG. 1A with the doors open, and FIG. 1C shows the exemplary filling station housing of FIG. 1A with the different doors open. 1A illustrates an exemplary dispenser that can be used to dispense chemical products from a product package as shown in FIG. 1A. 1A illustrates an exemplary dispenser that can be used to dispense chemical products from a product package as shown in FIG. 1A. FIG. 6 is a cross-sectional view of an exemplary equipment insert mated with a docking connector, showing the check ball in the open position. FIG. 6 is a cross-sectional view of an exemplary equipment insert showing the check ball in a closed position. FIG. 6 is a perspective view of an exemplary check ball seal ring. FIG. 6 is an enlarged cross-sectional view of an exemplary equipment insert showing the check ball in a closed position. It is a perspective view of an equipment insertion part return. FIG. 6 is an exploded view of an exemplary barb, spring, ball, and ball seal of an exemplary equipment insert. FIG. 8 illustrates an exemplary barb, spring, ball, and ball seal assembled within an exemplary equipment insert. FIG. 6 is a cross-sectional view illustrating an exemplary equipment insert in a closed position, an open position, and a vacuum relief position, respectively. FIG. 6 is a cross-sectional view illustrating an exemplary equipment insert in a closed position, an open position, and a vacuum relief position, respectively. FIG. 6 is a cross-sectional view illustrating an exemplary equipment insert in a closed position, an open position, and a vacuum relief position, respectively. FIG. 3A is a top perspective view and a bottom perspective view, respectively, of an exemplary docking connector and an exemplary equipment insert body docked. FIG. 3A is a top perspective view and a bottom perspective view, respectively, of an exemplary docking connector and an exemplary equipment insert body docked. FIG. 6 is a top view of an exemplary equipment insert. FIG. 6 is a bottom view of an exemplary equipment insert.

  In general, the present disclosure is directed to refillable dispensing systems and components thereof. The system may include one or more reusable or refillable product packages configured to dock with the automatic refill station. The autofill station mixes the automatically concentrated chemicals with the diluent and dispenses the resulting chemical solution. The product package may include an equipment insert configured to mate with a docking connector at an automatic refill station. When the product package is docked with the filling station, the cooperation of the docking connector and the equipment insert may allow air to exit the interior of the product package as the chemical product is dispensed into the product package. When the chemical product is dispensed from the product package, the equipment insert may further allow air to enter the interior of the product package, preventing damage to the walls of the product package. The equipment insert and docking connection can be further configured to eliminate by-products created after dispensing the diluted chemical solution into the product package, thus allowing the product package to achieve a drying pause from the filling station. I am trying. Once removed from the docking connection, the exemplary equipment insert provides a secure hermetic seal for a product package that will not leak in either orientation under normal conditions.

  FIG. 1A illustrates an exemplary refillable dispensing system 100. The refillable dispensing system 100 includes a filling station 110 and at least one product package 152. In the examples described herein, the product package 152 may be reusable or refillable. The filling station 110 mixes the automatically concentrated chemical product with the diluent and dispenses the resulting chemical solution into the product package 152. A concentrate container 118 (see FIG. 1B) located within the filling station 110 stores the chemical concentrate. The filling station 110 is further connected to receive a diluent (such as water). A mixing pump (not shown) in the filling station automatically draws the appropriate amount of chemical concentrate from the concentrate container 118 and pumps it to the appropriate concentration to produce a chemical solution having a target concentration. Mix with the amount of diluent. For example, in the case of hand soap concentrate, the dilution factor can be 5: 1 (5 parts diluent to 1 part concentrate) or 10: 1. However, it will be appreciated that any dilution ratio may be used and the present disclosure is not limited in this respect.

  Exemplary refillable dispensing system 100 includes, but is not limited to, hand cleansers, liquid soaps, lotions, gels, foams, shampoos, hand creams, bactericides, disinfectants, foams, synthetic detergents. , Bleach, cleaning products, laundry products, dishwashing products, etc., and can be used with any type of concentrated chemical product. In other examples, system 100 may be used with any other type of chemical product.

  The filling station 110 includes a filling station housing 122, an actuator 112, and doors 120A and 120B. FIG. 1B shows the exemplary fill station housing 122 of FIG. 1A with the door 120B open. The window 116 allows the user to see the amount of concentrate remaining in the concentrate container 118. The lock 116 ensures that only an authorized user has access to the interior of the filling station housing and allows the user to lock the filling station housing 122 to allow changes. The opening of the door 120B provides access to the interior of the filling station housing 122 so that the concentrate container 118 can be replaced when the concentrate container 118 is empty or when a different chemical dispense is desired. Tolerate. FIG. 1C shows the exemplary fill station housing of FIG. 1A with door 120A open. Opening the door 120A allows access to the interior of the fill station housing 122 as well as access to the automatic fill pump 115 and docking connector 300. When the equipment insert of the product package is mated with the docking connector 300, actuation of the actuator 112 causes the self-filling pump 115 to automatically mix the concentrated chemical product stored in the concentrate container 118 with the diluent. The resulting chemical solution is dispensed into the product package through the fill port defined by the product package equipment insert.

  Referring again to FIG. 1A, the exemplary product package 152 includes one or more sidewalls 155 that form a closed product package configured to contain a quantity of chemical product. The product package 152 further includes an inlet port defined by a neck 156 into which the product package may be filled with a chemical product through an inlet port, and an outlet port 158A through which the chemical product may be dispensed from the product package through an outlet port 158A. The equipment insert 200 fitted within the neck 156 of the product package 152 is configured to form a sealed connection with a docking connector (see, eg, FIG. 3) located within the filling station housing 122. The equipment insert 200 forms a fill port through which the product package 152 can be refilled through the fill port. Once removed from the docking connection, the equipment insert 200 provides a secure seal for the product package 152 that does not leak in either orientation under normal conditions. The equipment insert 200 and docking connection may be further configured to eliminate by-products formed after dispensing the solution into the product package 152, so that after the product package has been filled, the product package 152 may be dried from the filling station. It is possible to achieve a pause.

  Product package 152 may be further connected to pump 154 to allow chemical products to be dispensed from product package 152. In the example of FIG. 1A, product package 152 and pump 154 are connected by mating threads 158A and 158B on product package 152 and pump 154, respectively. Product package 152 and pump 154 may in turn be loaded into a product dispenser, such as product dispenser 180 as shown in FIGS. 2A and 2B. The pump 154 may be configured to deliver any form of chemical product, such as liquids, foams, gels, alcohol foams, and the like. In some examples, the combination of pump 154 and product package 152 may provide up to 99% product discharge of product package 152 for a wide range of product viscosities and densities.

  2A and 2B show an exemplary dispenser 180 that may be used to dispense a chemical product from a product package, such as product package 152. As shown in FIG. 2A, the dispenser 180 includes a dispenser cover 182 and a push rod 184. FIG. 2B shows an exemplary dispenser 180 with cover 182 and push rod 184 removed. The push rod 184, when actuated by the user, causes the dispensing mechanism 188 to engage the pump 154, resulting in the dispensing of a discrete amount of chemical product, as indicated by arrow 186. In other examples, different types of manual actuators may be used in place of push rod 184. Alternatively, the dispenser 180 may include a sensor that detects the presence of the user's hand in proximity to the dispenser and automatically operates the actuator to dispense a volume of fluid for detection.

  Hand care dispensers, such as the exemplary dispenser 180, are generally located in close proximity to sinks in the kitchen, hospital room, washroom, or other location to facilitate hand washing by employees, the general public, or other users. Installed. Dispensing depends on the environment in which the dispenser is used (eg, a hospitality or restaurant location, as opposed to a medical location), the type of fluid dispensed, and / or the specific needs of the organization or business. The desired amount of fluid product to be dispensed can vary. In some examples, the pump 154 and / or the dispenser 180 are described in US Pat. No. 8,851, issued October 7, 2014 by Pelkey et al., Both of which are incorporated herein by reference in their entirety. No. 331 and Pelkey, issued March 31, 2015, and may be implemented as shown and described in US Pat. No. 8,991,655. However, it will be appreciated that other pump and / or dispenser designs may also be used and the present disclosure is not limited in this respect.

  The combination of refill station 110, product package 152, equipment insert 200, and pump 154 provides a “closed loop” refillable dispensing system with no user contact with concentrated chemicals. The refill station automatically provides accurate dilution rates of concentrated chemicals, and the sealing connection of the equipment insert and docking connector greatly reduces exposure of workers to strong chemicals in the absence of this. Reduce to. The refillable dispensing system 100 can thus increase ease of use, operator safety, and accuracy in preparing diluted chemical solutions.

  FIG. 3A is a cross-sectional view of the exemplary equipment insert 200 mated with the exemplary docking connector 300, showing the check ball 212 in an open position relative to the ring 216 of the check ball seal. Docking connector 300 may form a receiving connector for a filling station, such as filling station 110 as shown in FIG. The docking connector 300 includes a docking connector body 304, a filling probe 302, and a vent tab 306. The equipment insert 200 includes an equipment insert body 204 including a first hole 209 defining a fluid passage from a first side 201 of the equipment insert body to a second side 203 of the equipment insert body. The part body further includes an inner wall 205 forming a circumferential protrusion 223 around the interior of the fluid passage.

  The equipment insert body also includes a barb 220, a check ball 212, a spring 214, and a vent probe 208. The equipment insert body 204 further includes a plurality of equipment tabs 202 and a rim 203. The equipment insertion portion main body 200 further includes a docking sealing portion 206, a ball sealing portion 216, a ventilation probe sealing portion 210, and an equipment edge sealing portion 218. The barb member 220 is generally tubular in shape and includes a first end and a second end, with the first end positioned toward the first side of the fluid passageway, the equipment insert body 204. And a barb member configured to fit within the fluid passageway of the device, the barb member also including a hole extending from the first end to the second end.

  When inserted into a product package, such as the product package 152 of FIG. 1, the equipment insert body receives the neck 156 of the product package 152 between the rim 203 and the equipment tab 202. The equipment tab 202 flexes inwardly during insertion of the equipment insert body 204 into the neck 156 of the product package 152, after which the neck 156 of the product package 152 is completely within the space defined by the edge 203 and the equipment tab 202. When accepted by, it returns to its original state. The force provided by the equipment tab 202 pushes the neck 156 of the product package 152 against the equipment edge seal ring 218 to provide a seal between the equipment insert body 204 and the neck 156 of the product package 152. ..

  The equipment insert body 200 and docking connector 300 are a closed loop system in which chemicals can be delivered from a refill station 110 to a product package, such as product package 152, without exposing the user to strong chemical concentrates. Will be provided in cooperation. When fully docked, the fill probe 302 of the docking connector body 304 presses against the check ball 212 to allow product to flow into the product package as indicated by arrow 160. While the product package is docked, the tab 304 of the docking connector body 304 presses the vent probe 208, allowing entrapped air to exit the product package through the vent openings 211. The docking seal part 206 prevents the product from leaking out between the equipment insertion part body 204 and the docking connector body 304. The filling probe 302 presses the check ball 212 from the first side surface 201 of the equipment insertion portion main body when the equipment insertion portion 200 is fitted to the docking connector 300, and moves from the closed position to the sealing portion 216 to the sealing portion. The check ball 212 is configured to move to an open position with respect to 216.

  In some examples, once the package is removed from docking connector 300, check ball 212 is biased into a closed position against check ball seal 216. In the example of FIG. 3A, the biasing force is provided by a spring 214 that pushes the check ball against the ball seal ring 216 (or simply check ball seal 216) to form a positive leakproof seal. However, it will be appreciated that other mechanisms for biasing the check ball may also be used and the present disclosure is not limited in this respect. The user may carry, transport, or store the product in either orientation without ejecting it from the package. To dispense the product, the user does not need to open the container as it is a closed loop system. The contents of the product package are dispensed / dispensed during normal use in their respective dispenser units.

  FIG. 3B is a cross-sectional view of the exemplary equipment insert 200 showing the check ball 212 in a closed position relative to the check ball sealing ring 216. The sealing ring 216 is seated in the groove defined by the upper edge of the barb 220 and the inner edge protrusion formed by the equipment insert body 204. When the equipment insert 200 does not mate with the docking connector 300, the force provided by the spring 214 pushes the check ball 212 upwards and against the sealing ring 216, causing the check ball 212 and the sealing ring 216 to move. Make a seal at the interface.

  3C is a perspective view of an exemplary checkball sealing ring 216, and FIG. 3D is an enlarged view of the exemplary equipment insert 200 showing the checkball 212 in a closed position relative to the checkball sealing ring 216. FIG. The exemplary sealing ring 216 is generally torus-shaped with a non-circular cross section. The sealing ring can be made using, for example, an elastomeric material. The sealing ring 216 has a non-circular cross-section that includes a flat sealing surface 217 and equipment sealing surfaces 215A and 215B. The equipment sealing surfaces 215A and 215B are shaped to fit the geometry of the internal protrusions 223 formed in the longitudinal bore 209 of the equipment insert body 204. As such, the sealing surface 217 of the sealing ring 216 presented to the check ball 212 in the closed position presents a relatively large surface area with respect to the sealing interface as compared to a sealing ring having a circular cross section. ..

  The sealing ring 216 is seated in the groove defined by the lower edge of the internal projection 223 formed in the longitudinal bore 209 through the upper edge 221 of the barb 220 and the equipment insert body 204. The longitudinal axis of the hole 209 in the equipment insert body is generally aligned (eg, collinear) with the longitudinal hole 226 (eg, see FIG. 5B) of the barb 220 when the barb 220 is received in the hole 209. To do. When the equipment insert 200 does not mate with the docking connector 300, the force provided by the spring 214 pushes the check ball 212 upwards and against the sealing ring 216, causing the check ball 212 and the sealing ring 216 to move. Make a seal at the interface. Again, due to the flat encapsulation surface 217 of the sealing ring 216, a relatively large surface area results in a seal between the sealing ring 216 and the check ball 212 compared to a sealing ring having a circular cross section. Provided to the stop interface.

  FIG. 4 is a perspective view of the equipment insertion part return 220. The barbs 220 are sized to fit within the equipment insert body 204. The barbs 220 include one or more guide rails 222, barb tips 224, longitudinal holes 226, and spring seats 228. FIG. 5A is an exploded view of the exemplary barbs 220, springs 214, balls 212, and ball seals 216 of the exemplary equipment insert 300. FIG. 5B is a cross-sectional view showing the exemplary barbs 220, springs 214, balls 212, and ball seals 216 assembled within the exemplary equipment insert 300. The guide rail 222 is sized to guide the movement of the check ball 212 from the sealed position to the open position. An inner edge formed around the perimeter of hole 226 forms a spring seat 228 that supports spring 214 in hole 226.

  6A to 6C are cross-sectional views showing the equipment insertion portion in each of the closed position, the open position, and the vacuum relief position. In the closed position as shown in FIG. 6A, check ball 212 is held against ball seal 216 by the spring force provided by spring 214 (not shown for display purposes in FIG. 6A). Once the equipment insert body 204 is fully docked with the docking connector body 304, the fill probe 302 presses the check ball 212 and moves it from the closed position shown in FIG. 6A to the open position as shown in FIG. 6B. Let In the open position, fluid is dispensed through fill probe 302, around check ball 212, and into the product package.

  Once the product package is removed from the filling station and thus the equipment insert body 204 is removed from the docking connector body 304, the tension provided by the spring 214 (not shown in FIGS. 6A-6C) causes the check ball 212 to ball seal. Pushing against stop 216, a strong seal is formed, preventing chemicals from exiting the product package through the fill port provided by equipment insert 300. The product package may be loaded into a chemical product dispenser, such as the exemplary dispenser 180 as shown in FIGS. 2A and 2B. When the product is subsequently dispensed from the product package, such as by manual actuation of a push bar or movement or automatic actuation of a sensing sensor, an incomplete vacuum in the product package will cause a check ball in the equipment insert body 302. Created for the seal provided by 212 and seal 216. However, in some examples, the spring tension of spring 214 is designed to maintain a pressure balance in the product package during product dispensing. For example, the spring tension is sufficient to allow the partial vacuum created by the dispensing of the chemical product from the product package to allow air to enter and prevent damage to the product package, as shown in FIG. 6C. The ball 212 may be pulled away from the ball seal 216.

  In some examples, the tip of the fill probe 302 presses the check ball 212 at the fill probe 302 from which the chemical solution is dispensed, as shown in FIGS. A protruding rib 310 may be included that separates the check balls 212. The filling operation is performed below the sealing surface of the equipment insert (ie, below the equipment to the product package seal 216 and docking seal 206), thus reducing residual stacking of product. This can help achieve a clean separation from the docking connector 300 and equipment insert 200.

  7 and 8 are an upper perspective view and a lower perspective view, respectively, of the equipment insertion part 200 fitted with the docking connector 300. As shown above for FIG. 4, docking connector 300 may form a receiving connector for a filling station, such as filling station 110 as shown in FIG. The docking connector 300 includes a docking connector body 304, a filling probe 302, and a vent tab 306. The equipment insertion portion 200 includes an equipment insertion portion main body 204, a barb 220, a check ball 212, a spring 214, and a ventilation probe 208. The equipment insert body 204 further includes a plurality of equipment tabs 202 and a rim 203. The equipment insertion portion main body 200 further includes a docking sealing portion 206, a ball sealing portion 216, a ventilation probe sealing portion 210, and an equipment edge sealing portion 218.

  When inserted into a product package, such as the product package 152 of FIG. 1, the equipment insert body receives the neck 156 of the product package 152 between the rim 203 and the equipment tab 202. The equipment tab 202 flexes inwardly during insertion of the equipment insert body 204 into the neck 156 of the product package 152 so that the neck 156 of the product package 152 is fully received within the space defined by the edge 203 and the equipment tab 202. When it is done, it returns to its original state. The force provided by the equipment tab 202 pushes the neck 156 of the product package 152 against the equipment edge seal ring 218 to provide a seal between the equipment insert body 204 and the neck 156 of the product package 152. ..

  The equipment insert body 200 and docking connector 300 are a closed loop system in which chemicals can be delivered from a refill station 110 to a product package, such as product package 152, without exposing the user to strong chemical concentrates. Will be provided in cooperation. When fully docked, the fill probe 302 of the docking connector body 304 presses against the check ball 212 to allow product to flow into the product package as indicated by arrow 160. A longitudinal hole 226 extending through barb 226 receives check ball 212. The spring 214 fits within the hole 226 and is supported by the spring seat 214. The check ball 212 moves within the guide rail 222 between a closed position (not docked) and an open position (docked). The movement of the check ball 212 is resisted by the spring 214. The spring 214 is supported by a spring seat 228 formed at the base of the guide rail 222 around the inner circumference of the barb 220.

  The guide rails 222 help maintain proper alignment of the check balls 212 and prevent the check balls 212 from shifting relative to the seal 216. The upper edge of the barbs 220 helps maintain a constant positioning of the ball seal 216 and keeps the ball seal 216 from coming off.

  The check ball 212 moves in a linear path along the guide rail 222 by the force acting on it. Once seated, the spring 214 provides a positive seal between the check ball 212 and the O-ring seal 216 until sufficient cracking pressure (provided by chemical dispense from the product package) breaks the seal. Make a stop.

  While the product package is docked, the tab 304 of the docking connector body 304 presses the vent probe tip 208A, moving the vent probe 208 downward (as shown in FIGS. 7 and 8). This movement of the vent probe 208 causes the vent probe shoulder 208B to move further away from the vent probe seal 210 so that air entrapped from the product package is expelled from the product package while the product package is being filled. It is possible. The docking seal 206 prevents chemicals from leaking between the equipment insert body 204 and the docking connector body 304.

  Once the product package (and therefore the equipment insert body 204) is removed from the docking connector 300, the force provided by the spring 214 pushes the check ball against the ball seal 216 to ensure a secure leakproof seal. To form. The user can transport, transport, or store the chemical product in either orientation without leakage.

  Although certain exemplary mechanisms for achieving filling and venting are working, alternative methods may also be used and the present disclosure is not limited in this respect. For example, these functions may be accomplished using a compound valve, duckbill valve, solenoid valve, vented membrane, EPDM ball, umbrella valve, etc.

  FIG. 9 is a top view of an exemplary equipment insert 200. As seen in FIG. 9, equipment insert body 204, rim 203, equipment seal 218, vent probe tip 208A, vent tab 306 (visible through opening 211 in top 304 of equipment insert body), ball 212. , And return 220.

FIG. 10 is a bottom view of an exemplary equipment insert 200. Seen in FIG. 10 is the equipment insert body 204, locking tab 202, vent probe base 208C, ball 212, and barb 220.
The product package 152 can be any suitable size to suit various dispensing applications. For example, for hand-washing applications, product package 152 may be sold in a variety of sizes, such as 1250 ml (70 grams), 750 ml (40 grams), and / or any other suitable size bottle. In some examples, the product package 152 comprises lightweight, 100% recyclable high density polyethylene (HDPE). For example, a product package may be formed utilizing a high density polyethylene resin having a density of greater than 0.953 g / cc (according to ASTM D1505). In some applications, the product package may incorporate a percentage (eg, 25%) of recycled spent resin (PCR). Product packaging design may aim to maximize the fill volume while maintaining a small area. This can be accomplished by designing a low profile overlay and using the inner termination as a mechanism to permanently attach the insert via the locking tabs. Product packages, equipment inserts, and docking connections can be designed with strong resistance and high quality terminations to ensure that the system remains leak proof.

  In some examples, product package geometries and characteristics may be designed to resist or prevent damage during product ejection. For example, chamfered corners can help control product package deformation and promote better drop impact resistance. In some examples, the cracking pressure of the checkball encapsulation may be designed to break prior to damage to the lightweight HDPE product package.

  In some examples, such as product package 152 as shown in FIG. 1A, threaded connector 158A is provided to ensure that a suitable pump type with a matching thread pitch is mated with the product package. And can be designed with a unique thread pitch.

  The ring 216 of the check ball sealing portion, as well as the docking sealing portion 206, the equipment sealing portion 218, and the ventilation probe sealing portion are made of an elastomer material such as EPDM rubber (ethylene propylene diene monomer (M class) rubber). May be included. In some examples, the geometry of the ring 216 of the check ball seal is such that a flat seal surface is presented to the check ball 212, and a relatively large seal surface for the seal surface when compared to a seal ring having a circular cross section. Provides a large surface area.

  The check balls 212 can be either stainless steel (or other non-porous material) or elastomers.

  Spring 214 can be either metal or plastic. For example, the spring can be 300 series stainless steel or a Hastelloy metal blend. The length of the spring can be optimized to provide the best leakproof seal while allowing a partial vacuum to break the seal, so that air can be used during product dispense during chemical dispensing. Allows entry into the package and prevents damage to the product package. In some examples, the free length of the spring measures about 18 mm. However, it will be appreciated that the parameters of the spring may vary depending on the particular application and the present disclosure is not limited in this respect.

  In some examples, the factors that may be considered when choosing the spring and / or spring constant include the force required to press the check ball 212, the ease with which it can be docked with the filling station, and thus the filling. Should not be too high to facilitate ease, the spring should provide sufficient force to the check ball to provide a secure leak-tight seal when in the closed position, the product The partial vacuum created by dispensing the chemical product from the package is sufficient to stop the force of the spring and pull the check ball away from the seal so that the equipment insert inserts in balance with the product package. It may include enabling that. Allowing air to return to the product packaging system can help prevent damage to the product package when using non-vented product pumps.

  The exemplary refillable dispensing system and components described herein may provide several advantages. For example, a refillable dispensing system can help reduce the costs associated with dispensing chemicals. For example, a concentrated formulation may provide sufficient product for multiple refills using a concentrated pack. A user may purchase a set of refillable product packages, refill them, and reuse the same set for a longer period of time as compared to single-use containers. Concentrated formulations can help reduce storage space, which is often household items in cleaning rooms, closets, or carts. Concentrated formulations can also help reduce shipping costs, shipping frequency, packaging costs, and waste recovery. For example, if a product package can be refilled and reused approximately 10 times, the use of refillable product packages can reduce waste by up to 90% compared to single-use containers. Flexible product packages can be lighter than rigid hand-care bottles. In some examples, the product package may include 100% recyclable materials and may be used heavily and last up to a year. In addition, the user can "match" product packages at their convenience. This allows the user to be prepared for busy periods when he does not have time to change product packages. In some examples, pump design and bottle coordination can result in 99% or more emissions from product packaging. This may result in more product being offered to the user and less landfilling of the product.

  Example 1: A refillable dispensing system comprising a filling station including a docking connector, the filling station being configured to dispense a chemical solution from a chemical concentrate and a product package having a quantity Configured to accommodate the chemical concentrate of, and the equipment insert configured to mate with and form a sealed connection with the docking connector, the equipment insert configured to insert the equipment insert. Further comprising an equipment insert body including a first hole defining a fluid passage from a first side surface of the body portion to a second side surface of the equipment insert body, the equipment insertion body body surrounding the interior of the fluid passageway. The tubular barb further includes an inner wall forming a circumferential protrusion, the tubular barb having a first end and a second end, the first end being disposed toward a first side of the fluid passage. Insert the equipment in the state A barb configured to fit within the fluid passageway of the body, the barb extending from the first end to the second end, and the barb first end. The check ball sealing portion disposed between the circumferential projection and the check ball sealing portion in the fluid passage is biased to the closed position, and the second hole is provided between the closed position and the open position. A check ball further arranged to slide within the docking connector, the docking connector body and a first side of the equipment insert body when the equipment insert is mated with the docking connector. And a filling probe configured to move the check ball from the closed position to the open position, the refillable dispensing system.

  Example 2: The refillable dispense system of Example 1, wherein the product package further comprises an output port and the dispense system further comprises a pump mated to the output port of the product package.

  Example 3: The refillable dispenser of Example 2, further comprising a dispenser configured to receive a product package and a pump, the dispenser further including a dispenser actuator for dispensing a discrete amount of chemical product from the product package. system.

  Example 4: The filling station further comprises a switch, and when the equipment insert is mated with the docking connector and when the switch is activated, the filling station dispenses the chemical solution through the fluid passage into the product package. , The refillable dispensing system of Example 1.

  Example 5: The equipment insert body is arranged around a vent hole defining a vent passage from a first side of the equipment insert body to a second side of the equipment insert body and around a circumferential internal protrusion in the vent passage. And a tubular ventilation probe configured to fit within the ventilation passage, wherein the ventilation probe is biased to a closed position relative to the ventilation probe seal and is closed. The refillable dispensing system of Example 1 further disposed to slide within the air passage between the position and the open position.

  Example 6: The vent probe further comprises a shoulder, the vent probe shoulder forming a seal with the vent probe seal when the vent probe is in the closed position and the vent probe is in the open position. In addition, the refillable dispensing system of Example 1 in which air can escape from the product packaging.

  Example 7: The refillable dispenser system of Example 1, wherein the vent probe further comprises a vent probe tip accessible through the vent from the first side of the equipment insert body.

  Example 8: The docking connector further comprises a vent tab configured to press the vent probe tip and move the vent probe from the closed position to the open position when the equipment insert is mated with the dock connector. A refillable dispensing system of Example 7, including.

  Example 9: Example 1 wherein the barb further comprises a longitudinally extending guide rail and the check ball is further arranged to slide within the guide rail between a closed position and an open position. Refillable dispensing system.

  Example 10: The refillable dispensing system of Example 1 wherein the product package comprises high density polyethylene resin having a density greater than 0.953 g / cc.

  Example 11: An equipment insert forming a sealing port, wherein the product package can be filled with a fluid chemical product through the sealing port, the equipment insert from the first side of the equipment insert body to the equipment insert body. A device insert body that includes a first hole that defines a fluid passage to a second side of the device, the device insert body further including an inner wall that forms a circumferential protrusion around the interior of the fluid passage, the tubular barb The member has a first end and a second end, and is fitted into the fluid passage of the equipment insert body with the first end being arranged toward the first side surface of the fluid passage. A return member between the first end and the circumferential protrusion of the return member and a second hole extending from the first end to the second end. A disposed seal, and a check ball spring-biased in a closed position relative to the seal in the fluid passageway, A check ball, a closed position and between an open position, and is further arranged to slide in a second bore, equipped insert.

  Example 12: The equipment insert body is arranged around a vent hole defining a vent passage from a first side of the equipment insert body to a second side of the equipment insert body and around a circumferential internal protrusion in the air passage. And a tubular ventilation probe configured to fit within the ventilation passage, wherein the ventilation probe is biased to a closed position relative to the ventilation probe seal and is closed. The equipment insert of example 11 further disposed to slide within the air passage between the position and the open position.

  Example 13: The vent probe further comprises a shoulder, the vent probe shoulder forming a seal with the vent probe seal when the vent probe is in the closed position, and the vent probe is in the open position. In addition, the equipment insert of Example 12 in which air can escape from the product package.

  Example 14: The equipment insert of Example 12 wherein the ventilation probe further comprises a ventilation probe tip accessible from the first side of the equipment insert body through the ventilation hole.

  Example 15: Example 11 wherein the barb further comprises a longitudinally extending guide rail and the check ball is further arranged to slide within the guide rail between a closed position and an open position. Equipment insertion part.

  Example 16: The equipment insert body further comprises a peripheral edge disposed about a first side of the equipment insert body and a plurality of circumferential equipment tabs disposed about a sidewall of the equipment insert body. The equipment insert of Example 11, wherein the equipment tab and perimeter are configured to receive the neck of the product package.

  Example 17: Equipment insert of Example 11 in which the check ball comprises stainless steel.

  Example 18: The equipment insert of Example 11 wherein the product package comprises high density polyethylene resin having a density greater than 0.953 g / cc.

  Example 19: A refillable product package comprising the equipment insert of Example 11.

  Example 20: The refillable product package of Example 19, further comprising a product bottle having a neck, and the equipment insert body fitted within the neck of the product bottle.

  Example 21: A refillable product package comprising a product package having one or more sidewalls and a neck and an equipment insert forming a seal port through which the fluid chemical product can be filled through the seal port. And the equipment insert comprises a equipment insert body configured to fit sealably within a neck of a product package, the equipment insert body being provided from a first side of the equipment insert body. A tubular return member comprising a first hole defining a fluid passage to a second side of the insert body, the equipment insert body further comprising an inner wall forming a circumferential protrusion around the interior of the fluid passage, A first end portion and a second end portion, and the first end portion is arranged to face the first side surface of the fluid passage so as to be fitted into the fluid passage of the equipment insertion portion main body. And the return member has a first The second hole extending from the first portion to the second end, the sealing portion arranged between the first end of the barb and the circumferential projection, and the sealing portion in the fluid passage. A spring-loaded check ball in a closed position, the check ball being further arranged to slide in the second hole between the closed position and the open position, refillable Product package.

Various examples have been described. These and other examples are within the scope of the following claims.
[Item 1]
A refillable dispensing system,
A filling station including a docking connector, wherein the filling station is configured to dispense a chemical solution from a chemical concentrate.
A product package configured to contain an amount of the chemical concentrate,
An equipment insert fitted within the neck of the product package, the equipment insert configured to mate with the docking connector and form a sealed connection with them. And an equipment insertion portion,
An equipment insert body, comprising: a first hole defining a fluid passage from a first side surface of the equipment insert body to a second side surface of the equipment insert body, the first hole surrounding the interior of the fluid passage. An equipment insertion section body further including an inner wall forming a circumferential protrusion;
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A check ball sealing portion disposed between the first end portion of the return member and the circumferential protrusion;
A check ball urged to a closed position with respect to the check ball sealing portion in the fluid passage so as to slide in the second hole between the closed position and the open position. Further provided with a check ball, which is further arranged,
The docking connector is
Docking connector body,
When the equipment insertion portion is fitted to the docking connector, the check ball is pressed from the first side surface of the equipment insertion portion main body, and the check ball is moved from the closed position to the open position. A refillable dispensing system further comprising: a filling probe configured in.
[Item 2]
The refillable dispensing system of claim 1, wherein the product package further comprises an output port, and the dispensing system further comprises a pump fitted to the output port of the product package.
[Item 3]
The refillable item of claim 2, further comprising a dispenser configured to receive the product package and the pump, the dispenser further including a dispenser actuator for dispensing a discrete amount of chemical product from the product package. Dispensing system.
[Item 4]
When the filling station further includes a switch, the filling station mixes the chemical concentrate with a diluent to form the chemical solution, and the equipment insert is mated with the docking connector. The refillable dispensing system of claim 1, wherein the filling station further dispenses the chemical solution through the fluid passage and into the product package upon activation of the switch.
[Item 5]
The equipment insertion part body,
A ventilation hole that defines a ventilation path from the first side surface of the equipment insertion portion main body to the second side surface of the equipment insertion portion main body;
A ventilation probe seal disposed around the circumferential inner protrusion in the ventilation passage,
A tubular ventilation probe configured to be fitted in the ventilation path, wherein the ventilation probe is biased to a closed position with respect to the ventilation probe sealing portion, the ventilation probe, and the closed position. The refillable dispensing system of claim 1, further comprising a tubular venting probe further disposed to slide within the vent passage between an open position.
[Item 6]
The vent probe further comprises a shoulder, the vent probe shoulder forming a seal with the vent probe seal when the vent probe is in the closed position, the vent probe opening. The refillable dispensing system of item 1, wherein air can escape from the product package when in the position.
[Item 7]
The refillable dispensing system of claim 1, wherein the vent probe further comprises a vent probe tip accessible from the first side of the equipment insert body through the vent.
[Item 8]
The docking connector is configured to press the ventilation probe tip portion and move the ventilation probe from the closed position to the open position when the equipment insertion portion is fitted to the docking connector. The refillable dispensing system according to item 7, further comprising a ventilation tab.
[Item 9]
The return member further comprises a longitudinally extending guide rail, the check ball being further arranged to slide within the guide rail between the closed position and the open position, The refillable dispensing system described in item 1.
[Item 10]
The refillable dispensing system of claim 1, wherein the product package comprises high density polyethylene resin having a density greater than 0.953 g / cc.
[Item 11]
An equipment insert forming a sealing port, wherein the product package can be filled with a fluid chemical through the sealing port, the equipment insert comprising:
An equipment insert body, comprising: a first hole defining a fluid passage from a first side surface of the equipment insert body to a second side surface of the equipment insert body, the first hole surrounding the interior of the fluid passage. An equipment insertion section body further including an inner wall forming a circumferential protrusion;
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A sealing portion arranged between the first end portion of the return member and the circumferential protrusion;
A check ball, which is spring-urged to a closed position with respect to the sealing portion in the fluid passage, so as to slide in the second hole between the closed position and the open position. An equipment insertion part, which is provided with a check ball.
[Item 12]
The equipment insertion part body,
A ventilation hole that defines a ventilation path from the first side surface of the equipment insertion portion main body to the second side surface of the equipment insertion portion main body;
A ventilation probe seal disposed around the circumferential inner protrusion in the ventilation passage,
A tubular ventilation probe configured to be fitted in the ventilation path, wherein the ventilation probe is biased to a closed position with respect to the ventilation probe sealing portion, the ventilation probe, and the closed position. Item 12. The equipment insert of item 11, further comprising: a tubular venting probe further disposed to slide within the vent passage between an open position.
[Item 13]
The vent probe further comprises a shoulder, the vent probe shoulder forming a seal with the vent probe seal when the vent probe is in the closed position, the vent probe opening. 13. The equipment insert of item 12, wherein air can escape from the product package when in the position.
[Item 14]
13. The equipment insert of item 12, wherein the ventilation probe further comprises a ventilation probe tip accessible from the first side of the equipment insert body through the vent.
[Item 15]
The return member further comprises a longitudinally extending guide rail, the check ball being further arranged to slide within the guide rail between the closed position and the open position, The equipment insertion part described in item 11.
[Item 16]
The equipment insertion part body,
A peripheral edge arranged around the first side surface of the equipment insert body;
Further comprising a plurality of circumferential equipment tabs arranged around the sidewall of the equipment insert body,
Item 12. The equipment insert of item 11, wherein the equipment tab and the perimeter are configured to receive a neck of the product package.
[Item 17]
Item 12. The equipment insert of item 11, wherein the check ball comprises stainless steel.
[Item 18]
Item 12. The equipment insert of item 11, wherein the product package comprises high density polyethylene resin having a density greater than 0.953 g / cc.
[Item 19]
A refillable product package comprising the equipment insertion part according to item 11.
[Item 20]
20. A refillable product package according to item 19, further comprising a product bottle having a neck, wherein the equipment insert body is fitted within the neck of the product bottle.
[Item 21]
A refillable product package,
A product package having one or more sidewalls and a neck,
An equipment insert forming a sealing port, wherein the product package can be filled with a fluid chemical product through the sealing port, and the equipment insert comprises:
An equipment insertion section main body configured to be sealably fitted in the neck portion of the product package, from a first side surface of the equipment insertion section main body to a second side surface of the equipment insertion section main body. An equipment insert body comprising a first hole defining a fluid passage, further comprising an inner wall forming a circumferential protrusion around the interior of the fluid passage;
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A sealing portion arranged between the first end portion of the return member and the circumferential protrusion;
A check ball, which is spring-urged to a closed position with respect to the sealing portion in the fluid passage, so as to slide in the second hole between the closed position and the open position. Refillable product package with check balls in place.

Claims (21)

A refillable dispensing system,
A filling station including a docking connector, wherein the filling station is configured to dispense a chemical solution from a chemical concentrate.
A product package that is configured to receive the chemicals solution of a quantity to be dispensed from the filling station,
An equipment insert fitted within the neck of the product package, the equipment insert configured to mate with the docking connector and form a sealed connection with them. And an equipment insertion portion,
An equipment insert body, comprising: a first hole defining a fluid passage from a first side surface of the equipment insert body to a second side surface of the equipment insert body, the first hole surrounding the interior of the fluid passage. An equipment insertion section body further including an inner wall forming a circumferential protrusion;
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A check ball sealing portion arranged between the first end portion of the tubular return member and the circumferential protrusion;
A check ball urged to a closed position with respect to the check ball sealing portion in the fluid passage so as to slide in the second hole between the closed position and the open position. Further provided with a check ball, which is further arranged,
The docking connector is
Docking connector body,
When the equipment insertion part is fitted with the docking connector, the check ball is pressed from the first side surface of the equipment insertion part body, and the check ball is moved from the closed position to the open position , thereby, further comprising, refillable dispensing system, a fill probe configured so that the chemical solution of a quantity is dispensed into the product package from the filling station.   The refillable dispenser system of claim 1, wherein the product package further comprises an output port, and the dispenser system further comprises a pump mated to the output port of the product package. 3. The dispenser of claim 2, further comprising a dispenser configured to receive the product package and the pump, the dispenser further comprising a dispenser actuator for dispensing a discrete amount of a chemical product solution from the product package. Refillable dispensing system.   When the filling station further includes a switch, the filling station mixes the chemical concentrate with a diluent to form the chemical solution, and the equipment insert is mated with the docking connector. The refillable dispensing system of claim 1, wherein the filling station further dispenses the chemical solution through the fluid passage and into the product package upon activation of the switch. The equipment insertion part body,
A ventilation hole that defines a ventilation path from the first side surface of the equipment insertion portion main body to the second side surface of the equipment insertion portion main body;
A ventilation probe seal disposed around the circumferential inner protrusion in the ventilation passage,
A tubular ventilation probe configured to fit within the ventilation passage, wherein the tubular ventilation probe is biased to a closed position with respect to the ventilation probe sealing portion, and the tubular ventilation probe is closed. The refillable dispensing system of claim 1, further comprising a tubular venting probe further disposed to slide within the vent passage between a position and an open position. The tubular vent probe further comprises a shoulder portion, the front Kikata part, when the tubular vent probe is in said closed position, said forming a seal with the vent probe the sealing portion, the tubular vent probe The refillable dispenser system of claim 5 , wherein air can escape from the product package when in the open position. The refillable dispensing system of claim 5 , wherein the tubular vent probe further comprises a vent probe tip accessible from the first side of the equipment insert body through the vent. The docking connector is configured to press the ventilation probe tip and move the tubular ventilation probe from the closed position to the open position when the equipment insertion portion is fitted to the docking connector. The refillable dispensing system of claim 7, further comprising a venting tab. The tubular return member further includes a longitudinally extending guide rail, the check ball being further arranged to slide within the guide rail between the closed position and the open position. The refillable dispensing system according to claim 1.   The refillable dispensing system of claim 1, wherein the product package comprises high density polyethylene resin having a density greater than 0.953 g / cc. A equipped insertion portion forming the sealing port, obtained by chemical products solutions through the sealing ports in the product package is filled, the equipment insertion portion,
An equipment insert body, comprising: a first hole defining a fluid passage from a first side surface of the equipment insert body to a second side surface of the equipment insert body, the first hole surrounding the interior of the fluid passage. An equipment insertion section body further including an inner wall forming a circumferential protrusion;
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A sealing portion disposed between the first end portion of the tubular return member and the circumferential protrusion;
A check ball, which is spring-urged to a closed position with respect to the sealing portion in the fluid passage, so as to slide in the second hole between the closed position and the open position. It is located,
A check ball , whereby a quantity of the chemical solution can be dispensed from a filling station into the product package . The equipment insertion part body,
A ventilation hole that defines a ventilation path from the first side surface of the equipment insertion portion main body to the second side surface of the equipment insertion portion main body;
A ventilation probe seal disposed around the circumferential inner protrusion in the ventilation passage,
A tubular ventilation probe configured to fit within the ventilation passage, wherein the tubular ventilation probe is biased to a closed position with respect to the ventilation probe sealing portion, and the tubular ventilation probe is closed. 12. The equipment insert according to claim 11, further comprising: a tubular ventilation probe further disposed to slide within the ventilation passage between a position and an open position. The tubular vent probe further comprises a shoulder portion, the front Kikata part, when the tubular vent probe is in said closed position, said forming a seal with the vent probe the sealing portion, the tubular vent probe 13. The equipment insert according to claim 12, wherein air can escape from the product package when in the open position. 13. The equipment insert of claim 12, wherein the tubular ventilation probe further comprises a ventilation probe tip accessible from the first side of the equipment insert body through the vent. The tubular return member further includes a longitudinally extending guide rail, the check ball being further arranged to slide within the guide rail between the closed position and the open position. The equipment insertion part according to claim 11. The equipment insertion part body,
A peripheral edge arranged around the first side surface of the equipment insert body;
Further comprising a plurality of circumferential equipment tabs arranged around the sidewall of the equipment insert body,
12. The equipment insert of claim 11, wherein the circumferential equipment tab and the peripheral edge are configured to receive a neck of the product package.   The equipment insert according to claim 11, wherein the check ball comprises stainless steel.   The equipment insert according to claim 11, wherein the product package comprises a high density polyethylene resin having a density greater than 0.953 g / cc.   A refillable product package comprising the equipment insert according to claim 11.   20. The refillable product package of claim 19, further comprising a product bottle having a neck, wherein the equipment insert body is fitted within the neck of the product bottle. A refillable product package,
Possess one or more side walls and neck, and product packaging that is configured to receive the dispensed chemicals solution an amount,
A equipped insertion portion forming the sealing port, wherein the chemical solution through the sealing ports in the product package can be filled, with a fitted insertion section, wherein the equipment insertion portion,
An equipment insertion section main body configured to be sealably fitted in the neck portion of the product package, from a first side surface of the equipment insertion section main body to a second side surface of the equipment insertion section main body. It includes a first bore defining a fluid passage, further comprising an inner wall that forms a circumferential projection around the inner portion of the fluid passageway, and equipped insertion portion main body,
Within the fluid passageway of the equipment insert body having a first end portion and a second end portion, with the first end portion being arranged toward the first side surface of the fluid passageway. A tubular barb member configured to fit into, the tubular barb member having a second hole extending from the first end to the second end,
A sealing portion disposed between the first end portion of the tubular return member and the circumferential protrusion;
A check ball, which is spring-urged to a closed position with respect to the sealing portion in the fluid passage, so as to slide in the second hole between the closed position and the open position. A refillable product package comprising a check ball that is positioned so that the quantity of the chemical solution can be dispensed from a filling station into the product package.

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