JPS6232974B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates generally to a spray device valve assembly for delivering a mixture to an atomizing nozzle of a spray device, and more particularly to a spray device valve assembly for delivering a mixture to an atomizing nozzle of a spray device, and more particularly for mixing two or more components and The present invention relates to a valve assembly and spray device for spraying a homogeneous mixture.

A number of methods and processes have been developed in the past in the art of equipment for spraying polyester resins and catalysts onto a surface. Although these devices have had some success, they are unsatisfactory in that they are quite heavy to hold in the hand and are cumbersome to use. In addition, these devices were generally extremely complex and difficult to maintain.

In this art, polyester resin and catalyst are applied to the gun via a resin pump, catalyst or injection pump and air source and then mixed internally at the gun nozzle or externally at the surface to be coated. Blending together was the commonly used practice.
There were two different methods of spraying technology. One method is "air-atomized"
It is a low pressure (100psi or less) method called
Mixed internally at the gun nozzle. In the process, the catalyst reaches the gas body from an air atomizing injector that provides premixed catalyst and air to the gun. The premixed catalyst and air are conveyed in atomized form to the gun via a suitable hose. The resin and atomized catalyst are then mixed internally by a grid system in the nozzle area of the spray gun.
The method requires cleaning the entire passageway, including the nozzle and body, after each use.

The second method uses high pressure and is commonly referred to as the "airless" method. In the apparatus, polyester resin is fed to a spray gun and then through an orifice or an airless V-shaped jet in the gun nozzle head. The catalyst is also pumped into the nozzle and maintained in an airless state, and in some cases requires a diluent containing compatible agents.
This allows for the use of orifices or V-shaped jets of sufficient size to prevent blockage problems due to small particles that often occur with dilute catalysts. The nozzle head has two or more V-shaped orifice arrangements for forming the required spray pattern. The two V-shaped injection openings of the nozzle are at an angle to each other to allow the catalyst and resin to intersect and form a suitable spray pattern. In addition to the disadvantages already mentioned, such as blockage of the V-shaped nozzle orifice due to high pressure, the prior art devices required extensive maintenance to remain suitable for continuous use.
This requires frequent cleaning operations to prevent the material blocking the passageway from hardening. Therefore, design simplifications are critically needed to reduce maintenance costs and increase the ease of use of conventional devices.

Also known in the art are valves for use in spray equipment to mix and deliver multiple components to a spray nozzle. However, such valves are not always satisfactory and problems have arisen, particularly in the case of spray devices for mixing catalyst with resin. To solve this problem, the valve according to the invention is configured to mix air with the catalyst and then feed it to the nozzle and at the same time atomize it together with the resin. However, it has been difficult to obtain a suitable mixture of air and catalyst to combine with the resin to produce the desired result. One such conventional device is
There are dual valve arrangements in which air moves the valve body away from the second orifice and allows the catalyst to mix with the air. Although the valve arrangement has had some success, it has not been satisfactory for low pressure requirements because of the tendency of the valve body to vibrate. The present invention overcomes the problems of conventional valves and provides a smooth and easy to control mixing assembly.

It is an object of the present invention to provide a valve assembly for the controlled mixing of two components, and in particular the controlled mixing of air with a catalyst for delivery to a feed line.

It is also an object of the present invention to provide a spray gun device which utilizes a novel valve assembly which is uncomplicated in design and therefore has a minimum number of parts and which is safe to use, reliable, lightweight and efficient. It is to be.

The flow rates of components such as air and catalyst are easily controlled by push rods acting on the stem of the core valve. One advantage of the valve assembly according to the invention is that the chamber, housing and core valve can be easily disassembled for cleaning if desired, and the core valve can be quickly replaced. . When the valve assembly is attached to or incorporated into a spray device, the plurality of valves in the spray device operate simultaneously to cause the air-catalyst mixture to be discharged through the nozzle of the spray device, while the resin is simultaneously discharged through a second nozzle. released through. The valve assembly can be mounted to a housing or a fitting and is therefore easily attached to all spray devices commonly used today.

The novel valve assembly of the present invention includes a chamber with a valve housing mounted therein, providing a passageway between the exterior of the housing and the chamber wall for air to flow through the chamber. The central part of the body is fitted with a core or stem valve which releases a component or catalyst to the outlet side of the chamber for mixing with a second component, such as air. The air flow rate is controlled by a main valve actuated by a spray device trigger, which simultaneously actuates a mechanical plunger or pushrod to open the core or stem valve.

The spray device utilizing the novel valve assembly has a novel method of atomizing and dispensing resin, catalyst and air, and overcomes the difficulties and disadvantages of prior art devices. To this end, the spray device according to the invention, which takes advantage of the advantages of both "air atomization" and "airless" methods, is provided with a spray gun body to which a nozzle body is attached. The nozzle body has one valve for delivering resin to the removable nozzle, while the gun body has a second valve for delivering the mixture from the nozzle body to the nozzle. This allows the valves for resin and catalyst delivery to be provided separately and in separate housings so that they can be replaced, repaired and cleaned separately. The mixing chamber of the gun body incorporates a novel valve assembly feature. That is, the gun body has a mixing chamber housing, and the core valve provides catalyst to the mixing chamber along with a supply of low pressure air. Air is fed into the mixing chamber via the outer part of the coaxial cable and flows into the chamber through an opening provided in the flange carrying the housing for the core valve. The core valve is actuated by a rod attached to the valve to release the mixture from the nozzle body to the nozzle.

The nozzle body is attached to the gun body by a hollow tubular nut having a threaded nipple for attaching the resin conveying conduit. The resin flows under airless conditions at moderate pressure (800 psi) into the nozzle body through a hollow tubular nut into a chamber in the nozzle body and then through a first valve into the central opening of the nozzle. . Air and catalyst are fed to a coaxial cable to the mixing chamber via passages in a core valve and a flange surrounding the housing for the core valve. A second valve allows the mixture to flow from the mixing chamber through the gun body and into the nozzle body where it is then released into a pair of openings located on either side of the resin opening of the nozzle. The second valve is actuated simultaneously with the first or resin valve and also actuates the core valve for mixing air and catalyst in the mixing chamber. The pair of openings in the nozzle are directed toward a central airless V-shaped jet such that a uniform spray of the low-pressure catalyst mixture intersects the resin in close proximity to the nozzle of the spray gun. It is set at an angle. Three openings are arranged in the nozzle to create a uniformly mixed fan-shaped spray of resin and atomized catalyst.

It is an object of the present invention to provide a valve assembly for efficiently mixing two components.

Another object of the invention is to provide a valve assembly that can be easily disassembled for repair or replacement.

Another object of the invention is to provide a valve assembly for mixing two components that operates smoothly and efficiently over a wide pressure range.

Another object of the invention is to provide a valve assembly for mixing two components that can be easily adapted to existing spray equipment.

Another object of the invention is to provide a spray device that is efficient and easy to use.

Another object of the invention is to provide a spray device for spraying two or more components with separate housings for each valve to simplify maintenance and repair.

Another object of the invention is to provide a spray device for spraying two or more components into the gun body with a simple and efficient mixing chamber.

Another object of the present invention is to provide a spray device that utilizes a simple, consumable "core valve" to deliver catalyst to the mixing chamber.

Another object of the invention is to provide a spray device for mixing two or more fluid components in which removable nozzles provide a uniformly directed spray.

Yet another object of the present invention is to take advantage of the benefits of spraying an "airless" resin and a "catalytic air mixture" at low pressures to achieve complete control over the speed and vacuum at a given location. To provide a spray device for delivering two or more fluid components that are attracted to a fan pattern of resin due to high flow rate, thereby eliminating overspraying or overspraying. It is.

Another object of the present invention is to provide a spray device for delivering two or more fluid components that uniformly mixes the premixed catalyst and components outside the spray gun.

Another object of the invention is to provide a spray device for delivering two or more fluid components that does not require cleaning means, thus eliminating the risk of solvent fire and reducing costs. That's true.

Other objects, advantages and novel features of the invention will become apparent from the description below.

When manufacturing thermosetting plastic products,
As illustrated in FIG. 1, a spray device 10 having a pair of nozzles 12 and 14 is required to simultaneously spray two components, such as a catalyst and a resin. The amount of catalyst delivered to nozzle 12 is carefully controlled by first mixing it with air in mixing valve assembly 16, which is the subject of the present invention. The mixing valve assembly 16 is shown as an accessory to an existing spray device. The heart of the mixing valve assembly is a mixing housing 20 having a chamber 22 to which a body or valve housing 24 is attached and which is connected to the chamber by a fitting or hose fitting 26. It is firmly held at 22. The valve housing or body 24 is provided with a central threaded hole 30 into which a core or stem operated valve 28 is mounted. The opposite end of the housing 24 is constricted into an inlet tube 32 for connecting a hose 34 arranged in series with the core valve 28 . Valve housing 24 is shaped to fit within chamber 22, as shown in FIG.

In FIG. 4, which is a cross-sectional view, the chamber 22 is cylindrical, but the housing 24 has a square cross-section. The corner of the housing 24 is located in the chamber 22.
An abutting ridge 40 is formed within 2 to securely hold the housing. Also, mounting tool 2
The inner diameter at the 42 position of the housing is such that when the fitting 26 is threaded into the mixing housing 20, the valve housing 24 is mounted between the raised portion 40 and the end of the fitting 26. 24 diagonal dimensions. Therefore, the fitting 26
When the valve housing is removed from the mixing chamber housing 20, the valve housing can be easily slid out of the chamber 22, so that the core valve 28 can also be easily removed for cleaning, repair, or replacement.

Air or a second component is delivered to chamber 22 via a second hose 44 coaxial with first hose 34 . Air or the second component is thus fed into the chamber 22 through the passage 36, as illustrated by the arrow, and at the same time the catalyst or the first component is fed into the chamber 22 via the hose 34 and the core valve 28. and will be sent. Core valve 28 is similar to a tire core valve and is operated by stem 50. When the stem is moved to the right, it displaces collar 52 from valve seat 54 and allows catalyst to flow through the valve into chamber 22 to mix with air.

In order to adapt the new mixing valve to existing spray equipment, a stepped feed pipe arrangement is provided. The supply pipe 18 is connected to a slotted bolt 56 fitted into a stepped socket portion 58 of the mixing chamber housing 20. The air-catalyst mixture passes through a passage 6 leading to a hole 64 in bolt 56 sealed by an O-ring 60.
2 into the supply pipe 18.

The core valve 28 for delivering catalyst to the chamber 22 is actuated by a plunger or pushrod 66 that engages the end of the stem of the valve 28. Plunger 66
is mounted within the mixing chamber housing 20 by a lid 70 and split washer 72 biased by a spring 68 and mounted in a groove in the plunger 66.
The push rod device 66 has O-rings 7 at both ends of the spring 68.
4. The button 76 has a locking screw 7
8, it is attached to the push rod 66 in an adjustable manner.
A set screw 78 allows adjustment of the button 76 to compensate for wear on the collar 52 of the core valve 28, if necessary.

For cooperation with existing spray equipment, a mixing valve assembly 16 may be attached to any existing spray equipment 10, such as as shown in FIG. 1, for example.
Supply pipe 18 is threaded into a main valve 80 connected to nozzle 12 . In the case of a large tube, the supply tube 18 is part of the existing spray equipment and has a hexagonal threaded end 82 for attaching a hose fitting. In this case, the slotted bolt 56 is threaded into the hexagonal end 82 of the supply tube 18, as shown most clearly in FIG. Nozzle valve 80 is actuated by trigger 84 which moves rod 86 in and out. Button 76 of valve assembly 16 is positioned to engage the end of rod 86 when trigger 84 is actuated. Upon actuation, trigger 84 moves rod 86 to open valve 80 and allow air to flow from valve assembly 16 to nozzle 12. At the same time as the valve 80 opens, the resin is poured into the nozzle 1.
A valve (not shown) is opened to allow flow to 4. In addition, trigger 84 simultaneously actuates plunger 66 to open core valve 28 and force air to flow around valve housing 24 to mix with catalyst in chamber 22 and create a mist. The mist is then discharged via valve 80 and nozzle 12.

Valve assembly 16 blends or mixes two or more fluids from separate sources together in chamber 22 and is used by spray equipment commonly used in industry. The valve assembly described herein directs two or more fluids or components to the main valve 8.
0 and controlled by the valve. The simultaneous actuation of the valve assemblies 16 allows them to be placed either in front of or behind the main valve 80, ie, used in series. In the embodiment illustrated in FIG. 3, a casing or mixing chamber housing 20 surrounds a square or other irregularly shaped valve housing 24. In the embodiment illustrated in FIG. Valve housing 24 includes a first component (i.e.
It is mounted within a cylindrical shaped conduit or chamber 22 creating a plurality of equal passages 36 through which compressed air flows. Although valve housing 24 is shown as square and chamber 22 as cylindrical, it will be appreciated that other shapes may be used. That is, the chamber could be square and the housing cylindrical, or the housing could have only one plane between each curved surface of the chamber. The outer shape of the valve housing 24 and the inner shape of the chamber 22 are such that when the housing 24 is installed, the housing and the chamber 22
It is only required that there be one or more passageways of sufficient dimensions to permit free flow of air between the inner wall of the air passage and the inner wall of the air passage.

Using the illustrated valve assembly, e.g.
There is no need to add diluents to catalysts such as ethyl, ketone, peroxide (MEKP) and suitable spray patterns can be obtained at suitable pressures. The present invention also allows low pressure compressed air to be mixed with raw (60%) undiluted MEKP. This results in a uniform catalytic action of appropriate proportions over a uniform spray pattern. The valve assembly of the present invention also eliminates the fire hazards of MEKP and ethyl acetate, particularly when the two are mixed together, thus providing an overall safer working environment for the industry. By valving the two components on a coaxial valve and providing a valve housing and chamber, linear flow can be achieved which allows the use of coaxial hoses. Coaxial hoses offer the benefit of a single hose over the more common two-hose devices. The valve assembly of the present invention can also be incorporated into spray devices having two or more nozzles, if desired.

As shown in FIG. 5, a spray device incorporating a valve assembly includes a gun body 11 to which a nozzle body 112 having a removable nozzle 114 is attached.
0. The gun body 110 has a handle 116
and a trigger 118. Conduits 120 and 122
The system typically delivers a fluid component consisting of polyester resin, catalyst, and air. Nozzle 114 provides a fan-shaped spray body of catalyst and resin to produce a planar spray. The plane spray covers a large area when the plane is perpendicular to the direction in which the spray gun is moved, and a relatively narrow line when the plane is parallel to the direction of movement of the spray gun. It will give rise to

FIG. 6, which is a cross-sectional view, illustrates a relatively simple type of spray device that delivers resin and catalyst to a nozzle and mixes the catalyst with air within the body 110 of the gun. Conduit 122 is of the coaxial type that simultaneously delivers air and catalyst to mixing chamber 124 in gun body 110. The conduit 122 is internally screwed into the gun body and externally connected to the joint 12 of the coaxial conduit 122.
It is attached to the gun body by a threaded nipple 126 attached to 8. Core valve 132 is threaded into the housing in the same manner as described in connection with the add-on valve assembly above.

However, the housing 130
It is mounted within the mixing chamber 124 by a flange 134 that abuts the inner end of the mixing chamber 124 . A spring 136 biased toward flange 134 holds housing 130 firmly in place. The opposite end of spring 136 is biased toward flange 138, which is part of valve 140. A rod or shaft 142 holds spring 136 in place between housing 130 and valve 140. Valve 140 has a resilient valve seat 144 that engages flange 138.

Valve 140, defined by valve seat 144 and flange 138, is all carried within a threaded valve housing 146. Valve 140 is actuated by a plunger 148 passing through a valve housing 146 that is sealed on the outside by a lid 150 . Valve housing 146 directs the mixture from mixing chamber 124 to passageway 154.
It has a passageway 152 for release to. Valve housing 146 has a recess in the region of opening 152 .

The resin conduit 120 is attached to the gun body 110 by a fitting threaded into a threaded nipple 160 of an elongated hollow nut 162. An elongated hollow nut 162 provides a passageway 164 in the nozzle body 112. The other end of the hollow elongated nut 162 is the threaded end 16
6, and is screwed into the screw hole 168 of the nozzle body 112. Passage 164 thus communicates with passage 170 in the nozzle body and supplies resin to chamber 172;
It is then delivered to the nozzle head assembly 114 via the resin valve assembly 174. By screwing the nozzle body 112 into the nut 162, the gun body 11
0, hollow bushing 176 aligns with and seals off catalyst mixture passageway 154 having passageway 178 in nozzle body 112. The flange 180 of the bush 176 is connected to the catalyst mixture passage 15.
4 and 178 are sealed.

Valve assembly 174 includes a valve seat 182 and a plug 184 attached to a shaft 186 for actuating the valve. The plug 184 has a valve housing 190 threaded into the nozzle body 112.
is closed by a spring 188 between. A threaded bushing 192 has a Teflon seal 1 inside the housing 190 for sealing around the shaft 186.
Hold 98. An adjustable trigger pull bush 194 is attached to shaft 186 by screws 196. Flanges at opposite ends of bushing 194 engage trigger 118 to actuate resin valve assembly 174. The bush also has valve 140 and core valve 1.
32 engages shaft 148 to actuate it. A cleaning plug 200 is provided in the nozzle body 112 to purge the chambers 170 and 172 of accumulated resin.

Nozzle assembly 114 includes a nozzle head 202 attached to nozzle body 112 by a locking nut 204. A pair of bushes 206 and 208 are mounted between the nozzle head 202 and provide a passageway in communication with the nozzle resin valve assembly 174. Thus, nozzle assembly 114 has two parts, catalyst head 202 and resin head 208, which can be removed and individually replaced as desired. The resin head 208 is provided with an opening in the center, more particularly in the form of a V-shaped jet orifice, shown at 210 in FIG. However, the catalyst head 202 has a pair of projecting orifices 21 for spraying the catalyst mixture into the resin spray body.
2 and 214. Therefore passages 216 and 21
8 communicate with the injection ports 212 and 214, respectively. The catalyst mixture passes through passage 1 into a circumferential or circular groove 220 in face 222 of nozzle body 112.
78. O-ring seal 22
4 and 226 seal the catalyst passage.

Trigger 118 is pivotally mounted to gun body 110 at a pin attachment location 230 . Upon operation,
Air and catalyst are passed through conduit 122 to mixing chamber 124
The catalyst is then supplied via the central conduit 123 and the air flows around the housing 130 and into the chamber 124. When trigger 118 is actuated, it pushes plunger 148 to the left and valve 140
and opens the core valve 132. Therefore, the catalyst is placed in chamber 1.
24 and mix while simultaneously flowing the mixture into passageway 154. Upon opening of trigger 118, resin valve assembly 174 releases resin delivered through conduit 120 and hollow nut 162 through nozzle body 112 and into the nozzle assembly. As seen in FIG. 7, nozzle assembly 114
The nozzles 210, 212, and 214 are the same V-shaped nozzle that produces a fan-shaped spray, and the catalyst mixture intersects the resin at a point proximate to the exit point from the nozzle assembly 114. This action creates a blended, uniform spray that coats the surface being sprayed.

The central resin nozzle 208 is keyed to the outer catalyst nozzle 202 by a slot 203 that engages the flat side of the resin nozzle. That is, they are attached in a certain positional relationship. Therefore, central nozzle 1
Whenever the 14 assembly is rotated on the gun, the V-shaped jets 210 of the resin nozzle 208 are always maintained parallel to the V-shaped jets 212, 214 of the catalyst nozzle 202. Thus, even if the nozzle assembly is rotated to change the spray pattern from horizontal to vertical, the fan pattern will remain substantially parallel.

If the resin nozzle 208 were not keyed to the catalyst nozzle 202, removal and replacement of the resin nozzle would make it difficult to align the sector pattern created by the V-shaped jets. The keying action eliminates the need to adjust the resin nozzle to the fan pattern of the catalyst nozzle. This has been a problem with some conventional spray guns.

Gun body 110 in the engaged position of each valve assembly and nozzle body 112 is normally fitted with a suitable O-
A ring is provided. That is, for example, the position 232 relative to the nozzle assembly, the position 232 relative to the resin valve assembly
34 position, 23 to resin hollow nut 162
6 position, and the nozzle body 112 to the gun body 11.
238 relative to the catalyst mixture bushing 176 for installation at 0. O-ring 238,
240 and 242 seal catalyst mixture valve 140. O-ring 244 connects coaxial conduit nipple 126
is sealed against the gun body 110.

The spray gun is an atomized type (atomized).
type) injection container is not required. Undiluted catalyst can be delivered to the gun via a coaxial hose arrangement from a vessel (not shown) fitted with a flow meter. The inner hose 123 carries the catalyst and the outer hose carries conditioned air. These two components reach the gun body 110 and are mixed simultaneously at the core valve assembly and mixing chamber 124 within the gun body 110. Next, the mixing chamber 1
24 through a hole into the gun nozzle 114 and through two orifices 212 and 214 at an angle of 10° to the resin.
and is applied in a fan pattern above and below the resin fan pattern. The nozzle can be rotated while maintaining the resin V-shaped jet orifices in place so that the fan pattern and the catalyst are always in the proper relationship to each other. When applying gel coat resins, it is advantageous to be able to rotate the entire gun nozzle for the best pattern position.

The resin is pumped into a gun used in an airless process. Pressures can be as low as 450 pounds to 3500 pounds. A conventional V-shaped jet orifice is used in the nozzle, the orifice size being determined by the gun operator.

In the above procedure, two air conditioning devices are used, one to control the amount of air used for mixing and atomization, and the other to control the pressure above the catalyst in a vessel fitted with a flow meter. It is very simple to carry out the catalytic action completely by using equipment for adjusting the catalytic activity. The device eliminates any delay in the blended mixture reaching the spray nozzle immediately. Due to its unique design, the catalytic valve is a consumable, easy-to-assemble core valve assembly that can be assembled and disassembled in a fraction of the time.

While Dapa spray guns have three or four hoses to operate, the improved method of the present invention uses only two hoses and
Further, no solvent cleaning means is required, and a low-cost device can be provided.

The most suitable feature for safe operation is that the low-pressure resin has the advantage of being sprayed in an airless manner, and of course the catalyst also has the advantage of being sprayed at approximately 12 to 20 ml without over-spraying.
This means that it is applied at a low pressure of one pound. The catalytic air mixture is drawn in at a 10° angle to the resin fan pattern by the resin flow rate. Overspraying of the catalyst is thus avoided.

Obviously, other variations of the invention are possible in light of the above teachings. It is therefore to be understood that the invention is not limited to the above description.

[Brief explanation of the drawing]

FIG. 1 is a side view of a mixing valve applied to a spray device. 2 is a plan view of the valve assembly taken along line 2--2 of FIG. 1; FIG. Figure 3 is line 3 in Figure 2.
FIG. 3 is a sectional view of the valve assembly taken in FIG. 4 is a partial cross-sectional view of the valve assembly taken along line 4--4 of FIG. 3; FIG. FIG. 5 is a side view of the spray device according to the invention. FIG. 6 is a cross-sectional view of the spray device of FIG. 5. FIG. 7 is a diagram taken along line 7--7 of FIG. FIG. 8 is a view taken along line 8--8 of FIG. 9 is a cross-sectional view of the nozzle assembly taken along line 9--9 of FIG. 6. FIG. 10: Spray device, 12: Air, catalyst nozzle, 14: Resin nozzle, 16: Mixing valve assembly, 2
0: Mixing chamber housing, 22: Chamber, 24: Valve housing, 28: Core valve, 110: Gun body, 11
2: Nozzle body, 114: Nozzle, 118: Trigger, 124: Mixing chamber, 130: Housing, 13
2: Core valve, 202: Catalyst nozzle head, 20
8: Resin nozzle head.

Claims (1)

Claims: 1. A chamber having an inlet and an outlet; a housing is mounted within the chamber; at least one passageway is provided between the exterior of the housing and the interior of the chamber; a hole in the housing; a consumable valve assembly disposed in the hole; a mechanical means for opening and closing a valve in the consumable valve assembly; a first conduit connection means in the housing for delivering a second component to the inlet side of the chamber of the valve assembly; a second conduit connection means for delivering a second component to the inlet side of the chamber; for mixing the two components, wherein the two components are mixed in the chamber by opening a valve of the consumable valve assembly and delivered to an outlet of the chamber. Mixing equipment. 2. A mixing device according to claim 1, wherein the chamber is cylindrical; the outer portion of the housing is flat; and a passage is formed by the cylindrical chamber and the flat surface of the housing. 3. The mixing device according to claim 2, wherein the cross section of the housing perpendicular to the axis of the cylindrical chamber is square. 4. The mixing device of claim 1, wherein the consumable valve assembly is a core valve; and the mechanical means for opening and closing the valve is a push rod that engages the end of the stem of the valve. 5. The hole in the housing is a threaded central hole; the core valve is screwed into the hole.
Mixing device as described in section. 6. A mixing device according to claim 1, wherein the first and second conduit connecting means are adapted to allow attachment of coaxial conduits. 7. A mixing device according to claim 1, wherein the housing is removable from the chamber so that the valve can be easily replaced. 8. The second conduit connecting means is a fitting detachably attached to the inlet side of the chamber; and the housing is attached to the chamber by attaching the fitting. Mixing equipment. 9 a plurality of spray nozzles, a trigger for simultaneously opening each valve for each nozzle, and a conduit for directing a plurality of components for spraying through said nozzles; A spray device for simultaneously spraying components, comprising: a chamber having an inlet and an outlet; a housing mounted within the chamber; and at least one chamber between the exterior of the housing and the interior of the chamber. a hole is provided in the housing; a consumable valve assembly is disposed in the hole; the consumable valve assembly is provided with mechanical means for opening and closing the valve;
a first conduit connection means is provided in said housing for delivering a first component to an inlet side portion of said chamber of said consumable valve assembly; for delivering a second component to an inlet side of said chamber; a second conduit connection means for mixing said two components in said chamber and delivering said two components to an outlet of said chamber by opening a valve of said consumable valve assembly; Spray device, characterized in that it is equipped with a mixing device for mixing the components, and is adapted to feed the component mixture to one of the nozzles via one of the valves. 10. Claim 9, wherein the triggering of the spray device causes the valves of the consumable valve assembly of the mixing device to operate simultaneously with one valve for the spray nozzle.
Spray equipment as described in section. 11. The spray device of claim 9, wherein the mixing device is mounted in a passageway leading to one valve of the spray device, thereby allowing the mixing device to be installed in existing spray devices. 12 a gun body having a handle and a trigger; a nozzle assembly mounted to the gun body; a plurality of coupling means for coupling a plurality of fluid components to the gun body; a plurality of passageways in the gun body communicating with the nozzle assembly; a chamber in the gun body communicating with one of the passageways; a housing disposed within the chamber; at least one passageway is provided between the housing and the interior of the chamber; a hole is provided in the housing; a consumable valve assembly is disposed in the hole; mechanical means for opening and closing the valve; providing a first conduit connection means in the housing for delivering a first component to the consumable valve assembly; and providing a first conduit connection means for communicating a second component with the exterior of the housing. providing a second conduit connection means for feeding the at least one passageway to and from an interior of the chamber; opening and closing each passageway via the nozzle assembly for spraying the plurality of components; further comprising means for coupling and actuating the trigger to the valve means for opening and closing the valve means; and means for activating the trigger by opening the valve of the consumable valve assembly. A spray device for simultaneously spraying a plurality of fluid components, wherein first and second components are mixed in the chamber and delivered to the nozzle assembly through a passageway in the gun body. . 13. The nozzle assembly includes a nozzle having a central opening for receiving the first component and a pair of openings located on opposite sides of the central opening for receiving the mixture, the pair of openings for receiving the mixture. 13. The apparatus of claim 12, wherein the mixture is mixed with the first component at a predetermined distance beyond the end of the nozzle. 14. Each orifice of the nozzle is configured to produce a flat fan-shaped spray, and each pair of apertures has a feed tube at an angle to the central aperture, so that the air flow from said pair of apertures 14. The spray device of claim 13, wherein the exiting mixture intersects the fluid from the central opening. 15. The spray device according to claim 13, wherein the nozzle is detachably attached to the nozzle assembly. 16. The spray device of claim 15, wherein the nozzle assembly has a circular recess communicating with the pair of nozzle openings, thereby uniformly distributing the mixture to the openings. 17. Claims: The pair of openings consists of an injection port provided in a first nozzle mount, and the central opening consists of an injection port provided in a second nozzle mount that engages with the first nozzle mount. 14. Spray device according to item 13. 18. Claim 17, wherein the second nozzle mount is keyed to the first nozzle mount so that both nozzle mounts rotate together while maintaining a constant orientation of each jet orifice. Spray equipment as described. 19 The second nozzle mount is configured to connect the first nozzle mount by providing a slot in the first nozzle mount having at least one flat side that matches a flat side of the second nozzle mount. 19. The spray device according to claim 18, wherein the spray device is keyed to. 20. The spray of claim 12, wherein the nozzle body is connected to the gun body by hollow tubular nut means, said hollow tubular nut means having coupling means for communicating one fluid component. Device. 21. The spray device of claim 20, further comprising alignment means for aligning the fluid passageway of the gun body with the fluid passageway of the nozzle body. 22. The alignment means comprises a hollow tubular member seated in a passageway in the gun body, and the hollow tubular member has an extension seated in a corresponding passageway in the nozzle body. 22. The spray device according to item 21. 23. Claim 22, wherein the hollow tubular member has a flange seat that engages the counterbore to seal the fluid passageway between the gun body and the nozzle body.
Spray device as described in section. 24. The spray device of claim 24, wherein the mechanical means includes a rod attached to one of the valve means to cause the consumable valve assembly to operate simultaneously with the valve means. 25. The housing is attached to the chamber by a flange provided on the exterior of the housing and engaged with the end of the second conduit, and the housing has a spring disposed between the flange and the one valve means. Claim No. 1 properly retained by
The spray device according to item 2. 26. The spray device of claim 25, wherein the at least one passageway between the exterior of the housing and the interior of the chamber is one or more holes in the flange of the housing. 27. The spray device of claim 12, wherein the consumable valve assembly includes a core valve mounted to the housing. 28 at least one nozzle jet for spraying one fluid component in a substantially flat fan pattern; a second nozzle jet for spraying the other fluid component in a substantially flat fan pattern; each nozzle orifice is attached by an attachment means such that the fan-shaped pattern from each nozzle orifice intersects and mixes with each other at a predetermined distance beyond the nozzle orifice; delivers a plurality of fluid components to the nozzle jets such that the fan pattern produced by each jet can be simultaneously rotated to any desired angle without affecting the orientation between the fan patterns. a nozzle body having a plurality of passages, an annular groove provided in the nozzle body and communicating with at least one, but less than all, of the passages and the at least one injection port; at least one passage-communicating hole that is disposed and does not communicate with the annular groove and the second injection port, and connecting means for connecting each injection port; thereby, the nozzle body and each injection port are connected to each other; A nozzle orifice assembly, wherein communication between the nozzle and the nozzle body is maintained constant with respect to the nozzle body regardless of the angular orientation of the orifice. 29 At least one nozzle injection port is arranged at a certain angle on opposite sides on a certain circumference,
29. The nozzle outlet assembly of claim 28, wherein the spray pattern from each outlet intersects at a predetermined distance from said nozzle outlet. 30. The nozzle orifice assembly according to claim 29, wherein the second nozzle orifice is disposed between the pair of nozzles. 31. The connecting means includes a central slot provided between the pair of injection ports and having at least one flat side surface, and a flat side surface of a second injection port that engages with the flat side surface of the central slot. 31. A nozzle outlet assembly as claimed in claim 30, comprising: wherein said two nozzles are constrained in a predetermined orientation.