JP7721565B2 - Cleaning Tools for Aerosol Generators - Google Patents

Description

The present disclosure relates to a cleaning tool for an aerosol generating device. In particular, the present invention relates to a cleaning tool for cleaning at least the heating chamber of an aerosol generating device.

Aerosol-generating articles in which the aerosol-forming substrate is heated rather than combusted to generate an inhalable aerosol are well known in the art. Typically, in such heated aerosol-generating articles, the aerosol is generated by the transfer of heat from a heat source to a physically separate aerosol-forming substrate or material. The aerosol-forming substrate may be located within, around, or downstream from the heat source. During use, volatile compounds are released from the aerosol-forming substrate by heat transfer from the heat source and are entrained in air drawn through the aerosol-generating article. As the released compounds cool, they condense to form an aerosol.

International Patent Publication No. 2013/102614 discloses an example of an electrically operated aerosol generating device in which the aerosol-forming substrate of the aerosol-generating article is heated in direct contact with a heating element to form an inhalable aerosol. The heating element is in the form of a blade extending from the bottom chamber wall of the heating chamber. The heating element is inserted into an aerosol-forming substrate segment of the aerosol-generating article.

When an aerosol-forming substrate, such as a tobacco substrate, is heated, volatile compounds are released. The volatile compounds and aerosol generated by the heat from the heating element can be deposited on the aerosol-generating device, particularly on the bottom chamber wall of the heating chamber. This is especially true because residue on the side walls of the heating chamber can be at least partially removed by inserting and removing the aerosol-generating article. Particles from the aerosol-forming substrate itself can also become attached to the heating element, particularly if the heating element is in direct contact with the aerosol-forming substrate. For example, when using the device described in International Patent Publication No. 2013/102614, the heating blade heats the tobacco substrate to a temperature of 200-350 degrees Celsius, releasing volatile compounds, nicotine, and glycerol that can form an aerosol. Nevertheless, residue and dust can collect inside the heating chamber within the device after multiple uses of the aerosol-generating article.

Residue and dust buildup on the bottom wall of the chamber can block the airflow passages of the aerosol generator. Furthermore, the heating element is susceptible to damage if the heating chamber is cleaned using inappropriate tools or objects.

According to one aspect of the present invention, a tool for cleaning an aerosol generating device having a heated chamber is provided. The tool may include a tool base. The tool may include first and second elongated members extending from the tool base. The first elongated member may have a first distal end distal to the tool base. The second elongated member may have a second distal end distal to the tool base. A slot may be defined between the first elongated member and the second elongated member. The tool may include a pivoting member. The pivoting member may be disposed between the base and both the first distal end of the first elongated member and the second distal end of the second elongated member. The pivoting member may be configured to allow the first elongated member and the second elongated member to pivot. For example, the pivoting member may allow the first elongated member and the second elongated member to pivot in a preferred direction transverse to the extension of the first elongated member. The pivoting member may be configured to restrict pivoting of the first and second elongate members in an undesired direction. The undesired direction may be any direction that is not a preferred direction. For example, the undesired direction may be any direction that includes a component that is orthogonal to the preferred direction.

Advantageously, the first and second elongated members may allow the tool to clean the heating chamber at the bottom wall near the base of the chamber. If the aerosol generating device has a heating element extending from the base of the heating chamber, the pivoting member may advantageously prevent movement of the first and second elongated members within the heating chamber that could damage the heating element.

According to another aspect of the present invention, a system is provided that includes an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross-section extending from a bottom chamber wall of the heating chamber into the heating chamber. The system also includes a tool for cleaning the aerosol generating device. The tool may include a tool base, a first elongated member extending from the tool base, and a second elongated member extending from the tool base. The first elongated member may have a first distal end distal to the tool base. The second elongated member may have a second distal end distal to the tool base. A slot may be defined between the first elongated member and the second elongated member. The first elongated member and the second elongated member may be configured to be received within the heating chamber such that the heating blade is at least partially received within the slot. The first elongate member and the second elongate member may be configured to be received within the heating chamber such that at least one of the first distal end of the first elongate member and the second distal end of the second elongate member extends against the bottom chamber wall. Reciprocating motion of at least one of the first distal end of the first elongate member and the second distal end of the second elongate member within the heating chamber may be configured to scrape against the bottom chamber wall.

As used herein, the term "reciprocating motion," in the context of one or both of a first distal end of a first elongated member and a second distal end of a second elongated member within a heating chamber having a heating blade extending therein, refers to angular motion generally parallel to the plane in which the heating blade lies. The angular motion can be initiated by moving the tool base in a direction parallel to the heating blade and slot. In response, the first elongated member and the second elongated member can move in a direction opposite to the movement of the tool base, causing one or both of the first distal end and the second distal end to scrape the chamber bottom wall.

Advantageously, a system including a cleaning tool provided with a first elongated member and a second elongated member defining a slot therebetween allows the tool to scrape or clean the bottom wall of the chamber of the aerosol generating device near the base of the heating element. Using the tool to clean the heating chamber preferably does not damage the heating blade. The tool may also serve to clean the heating blade.

The tool base, the first elongated member, and the second elongated member may be integrally formed. The first elongated member and the second elongated member may be coupled to the tool base. The tool base, the first elongated member, and the second elongated member may be formed from any suitable material. For example, one or more of the tool base, the first elongated member, and the second elongated member may be formed from a metal material, a plastic material, or a combination of a metal material and a plastic material.

The tool base may include a handle. The handle may extend in a direction away from the first distal end of the first elongate member. For example, the handle may extend away from the first distal end of the first elongate member along the longitudinal axis of the tool.

One or both of the first and second distal ends may have a tapered shape. For example, one or both of the first and second distal ends may be narrower than a portion of one or both of the first and second distal ends closest to the tool base. The tapered shape may facilitate scraping the bottom wall of the chamber.

The tool may include a pivot member disposed between the base and both the first distal end of the first elongate member and the second distal end of the second elongate member. The pivot member may be configured to allow the first elongate member and the second elongate member to pivot in a preferred direction transverse to the extension of the first elongate member. The pivot member may be configured to restrict the first elongate member and the second elongate member from pivoting in an unpreferred direction. The unpreferred direction may include any direction that includes a component orthogonal to the preferred direction. When the tool is used to clean an apparatus having a heating blade extending into the heating chamber, the pivot member is preferably configured to prevent movement of the first elongate member and the second elongate member within the heating chamber, which could damage the heating blade.

The pivot member, or a portion of the pivot member, may define a periphery having one or more channels configured to receive ribs of the heating chamber when the pivot member is inserted into the heating chamber. When the ribs are received in the channels, axial rotation of the first and second elongate members within the heating chamber may be limited. The one or more channels may be flared at the receiving end. Providing one or more channels with a flared receiving end may advantageously facilitate tool alignment and insertion into the heating chamber.

The pivoting member, or a portion of the pivoting member, may have an exterior shape and dimensions similar to the interior shape and dimensions of a heating chamber into which the pivoting member may be inserted. Such similar shapes and dimensions may facilitate insertion of the pivoting member into the heating chamber. Such similar shapes and dimensions may facilitate alignment of the pivoting member with the heating chamber. If the device includes a heating blade, proper alignment of the pivoting member with the heating chamber may result in proper alignment of the slot defined between the first elongated member and the second elongated member with the heating blade.

The pivoting member may comprise an elliptical member defining a periphery having at least one channel configured to receive a rib of the heating chamber. Engagement of the rib with the channel may prevent axial rotation of the first elongated member and the second elongated member within the heating chamber. The elliptical member may comprise a disk or a cylinder. The elliptical member may be elliptical in shape. The elliptical shape may include a circular shape. The at least one channel may be flared at the receiving end. Providing at least one channel with a flared receiving end may advantageously facilitate tool alignment and insertion into the heating chamber.

The pivot member may be integrally formed with the tool base, the first elongated member, and the second elongated member. The pivot member may be rigidly coupled between the base and both the first distal end and the second distal end. The pivot member may be formed from any suitable material. For example, the pivot member may be formed from a metal material, a plastic material, or a combination of a metal material and a plastic material.

The tool may include bristles extending from the first elongated member, or the second elongated member, or both the first and second elongated members. The bristles may advantageously increase the effective cleaning area of the tool. The bristles are preferably stiff enough to clean the surface of the heating chamber, but not stiff enough to cause damage to the heating blade extending into the heating chamber. The bristles preferably contact the surface and detach from the surface of the heating chamber or heating blade when the tool is being used to clean the heating chamber.

Bristles may extend radially outward from one or both of the first elongated member and the second elongated member. The radially outward extending bristles may advantageously clean the inner circumferential surface of the heating chamber.

The bristles may be formed from any suitable material. For example, the bristles may be formed from metal filaments, or plastic filaments, or filaments comprising metal and plastic materials.

The first elongated member has a first flat surface facing the slot, and the second elongated member has a second flat surface facing the slot, the first flat surface extending through a first plane, the second flat surface extending through a second plane, the first plane and the second plane being parallel planes, and the first flat surface and the second flat surface extending parallel to each other. Providing a tool with first and second elongated members having such flat inner surfaces can prevent the first and second elongated members from damaging the heating element when the chamber bottom wall is scraped with the tool. This arrangement of flat inner surfaces of the first and second elongated members can be particularly useful in preventing damage when the tool is configured to prevent axial rotation when the chamber bottom wall is scraped. For example, axial rotation can be prevented by providing a channel along the periphery of the pivot element, the channel configured to receive a rib of the heating chamber.

At least one of the first elongate member and the second elongate member may include one or more ridges on a surface facing the slot. The one or more ridges may be configured to collapse at a threshold level of torque or bending. The one or more ridges may be formed of an elastically deformable material. The one or more ridges may advantageously clean the surface of the heating blade while the bottom chamber wall is being scraped or cleaned. Additionally, the ridges configured to collapse or formed of an elastically deformable material may provide additional protection against damage to the heating blade.

The tool may include a cap. The cap may be configured to couple with the aerosol generation device. The tool may be configured such that one or both of the first elongated member and the second elongated member contact the bottom wall when the cap is coupled with the aerosol generation device. At least a portion of the cap may be configured to receive a portion of the aerosol generation device when the first elongated member and the second elongated member are received in a heating chamber of the aerosol generation device.

The cap may be formed from any suitable material. For example, the cap may be formed from a metal material, a plastic material, or a combination of metal and plastic materials.

The tool may include a rod operatively connecting the first and second elongated members to the cap. The rod may allow for reciprocating motion of the first and second elongated members. The rod may prevent axial rotation of the first and second elongated members. For example, the rod may operatively connect the first and second elongated members to the cap such that the first and second elongated members can pivot about the rod. Providing a cap and rod on the tool may advantageously provide controlled and consistent cleaning of the chamber bottom wall near the heating element. The cap and rod may also prevent axial rotation of the first and second elongated members, thereby preventing damage to the heating blade if the device includes a heating blade extending into the heating chamber. If the device includes a heating blade, the cap (or another element of the tool) preferably includes features configured to mate with corresponding features on the aerosol generation device to facilitate proper alignment of the first and second elongated members with the heating blade.

The rod may be formed from any suitable material. For example, the rod may be formed from a metal material, a plastic material, or a combination of metal and plastic materials.

The tool base may include a cleaning head for cleaning the aerosol generating device. The cleaning head may be positioned at an opposite end of the tool to the first distal end of the first elongate member. When the cleaning head is inserted into the heating chamber toward the bottom wall, the distal end of the first elongate member extends away from the bottom wall. The cleaning head is preferably configured to clean areas of the bottom surface of the heating chamber that may be inaccessible to the first distal end of the first elongate member and the second distal end of the second elongate member. The cleaning head may include a scraping surface for cleaning the bottom surface of the heating chamber. A tool having a cleaning head facing the first distal end of the first elongate member and the second distal end of the second elongate member may advantageously be used to clean the heating chamber better than a tool without a cleaning head.

The first and second distal ends may be laterally movable relative to one another to adjust the width or shape of the slot formed between the first and second elongated members. The tool may include one or more bearings configured to engage at least one of the first and second elongated members to limit the width of the slot between the first and second distal ends. The one or more bearings may be configured to limit the width of the slot between the first and second distal ends to less than 3 millimeters, preferably less than 2 millimeters, and preferably less than 1.5 millimeters. The one or more bearings may be configured to limit the width of the slot between the first and second distal ends to a width that is 0.2 to 1 millimeter wider than the thickness of the heated blade, preferably 0.3 to 0.5 millimeters wider than the thickness of the heated blade. The tool may further include one or more resilient members positioned adjacent to the first or second elongated members to provide lateral movement of the first and second elongated members. Each of the one or more resilient members may comprise a resilient ring. For example, each of the one or more resilient members may comprise an O-ring, e.g., a silicone O-ring.

The first and second elongated members are preferably laterally movable to adjust the width of the slot at the distal end of the tool during and after insertion of the tool into the heated chamber. For example, the first and second elongated members may be moved to increase the width of the slot at the distal end of the tool during insertion of the tool into the heated chamber, and may be moved to decrease the width of the slot at the distal end of the tool after insertion. Such lateral adjustment of the slot width may allow the first and second elongated members to be inserted into the heated chamber over the heated blade without damaging the blade during insertion. Thus, the tool easily conforms to the heated blade during insertion and can be moved into position to scrape or clean the bottom chamber wall near the heated blade after insertion. One or more bearings preferably limit lateral movement of the first and second elongated members beyond the point at which they can be inserted into the heated chamber.

The tool may include a motor coupled to the first elongated member and the second elongated member. The motor may be configured to provide reciprocating motion of the first elongated member and the second elongated member. The motor may be coupled to the tool base via a lever. A switch may be operably coupled to the motor to turn the motor on and off. The motor may be electrically powered. The motor may advantageously provide controlled and consistent cleaning of the chamber bottom wall.

The tool may include a cleaning station body configured to receive the aerosol generating device. The cleaning station body may be mechanically coupled to the first elongated member and the second elongated member to enable reciprocating motion of the first elongated member and the second elongated member. A lever may be mechanically coupled to the tool base to control the reciprocating motion of the first elongated member and the second elongated member. The lever may be manipulated to control the reciprocating motion of the first elongated member and the second elongated member. The cleaning station may advantageously provide controlled and consistent cleaning of the chamber bottom wall.

The tool may include three or more elongated members extending from the tool base. Additional slots may be defined between adjacent elongated members. One or more of the elongated members may be configured to bend or curve to allow a heating blade to pass through at least one of the additional slots. Providing three or more elongated members can increase the surface area that the tool can scrape or clean. Furthermore, if the aerosol generating device includes multiple heating elements, the additional slots can advantageously accommodate additional heating elements or blades.

The elongated members may include tapered sides. The tapered sides can advantageously allow the heating element to pass more easily between the elongated members, which provides additional protection against damage to the heating element during reciprocation. The distal ends of the elongated members may be tapered. The tapered distal ends can allow the heating element to pass more easily between the distal ends during insertion of the tool into the heating chamber, which provides additional protection against damage to the heating element.

The tool may include a freewheel attached to the tool base. The freewheel may rotate independently of the tool base and the elongated member. The freewheel may provide additional protection against axial rotation of the elongated member within the heating chamber. The freewheel may be connectable to the cleaning head. The freewheel may allow the cleaning head and tool to rotate independently of each other when connected together.

The tool may include a consumable member. The consumable member may include a recess. The recess may be configured to receive an elongated member. The consumable member may have any suitable shape. For example, the consumable member may have a cylindrical, rectangular, or swab-like shape. The consumable member may be formed of any suitable material. For example, the consumable member may be formed of cotton, foam, or other materials used for cleaning. The consumable member may advantageously increase the effective cleaning area of the tool.

The tool may include one or more protruding elements. A first protruding element may extend from the first elongate member, and a second protruding element may extend from the second elongate member. The first protruding element and the second protruding element may be disposed 180 degrees apart from each other around the circumference of the tool. The first protruding element and the second protruding element may be disposed to protrude from the tool in a direction away from the slot.

The protruding elements may provide additional protection against movement of the first and second elongate members in undesired directions. The first and second protruding members may be resiliently deflectable. The first and second protruding members may exert an outward force when resiliently deflected by one or more walls of the heating chamber. The outward force may be sufficient to resist movement in the undesired direction. According to another aspect of the present invention, there is provided a kit comprising an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross-section extending from a bottom chamber wall of the heating chamber into the heating chamber, and a tool as described herein.

According to another aspect of the present invention, a method is provided that includes inserting a tool having elongated members defining a slot therebetween into a heating chamber of an aerosol generating device, such that a blade of the aerosol generating device is received in the slot and the end of the elongated member contacts a bottom chamber wall of the heating chamber. The method also includes scraping the bottom chamber wall with the end of the elongated member by moving the end of the elongated member using a reciprocating motion.

Scraping or cleaning the bottom chamber wall with the end of the elongated member can preferably be accomplished without damaging the heating blade of the aerosol generating device. Damage to the heating blade can be prevented if a tool and device are configured to interact to prevent axial rotation of the first and second elongated members when the elongated members are received in the heating chamber. For example, axial rotation of the first and second elongated members can be prevented by providing a channel along the periphery of the pivot element, the channel configured to receive a rib on the heating chamber. As another example, axial rotation of the first and second elongated members can be prevented by providing a cap configured to align with the device and a rod that effectively connects the first and second elongated members to the cap.

The method may include widening the slot defined by the first and second elongated members before inserting the tool into the heated chamber, and narrowing the slot after inserting the tool into the heated chamber and before scraping the bottom chamber wall. Widening the slot during insertion allows the elongated members to be inserted over the heated blade without damaging the blade.

The method may include moving a lever of the cleaning station to move the end of the elongated member in a reciprocating manner. Advantageously, moving the lever of the cleaning station provides controlled and consistent cleaning of the chamber bottom wall near the heating element with the elongated member.

The method may include moving a tool around a rod connecting the cap to the elongated member to move the end of the elongated member using a reciprocating motion. Advantageously, moving the tool around a rod connecting the cap to the elongated member may provide controlled and consistent cleaning of the chamber bottom wall near the heating element.

The present invention is defined in the claims. However, the following provides a non-exhaustive list of non-limiting examples. Any one or more of the features of these examples may be combined with any one or more features of any other example, embodiment, or aspect described herein.

Example 1: A tool for cleaning an aerosol generating device having a heated chamber, the tool comprising: a tool base; a first elongated member extending from the tool base, the first elongated member having a first distal end distal to the tool base; a second elongated member extending from the tool base, the second elongated member having a second distal end distal to the tool base, a slot defined between the first elongated member and the second elongated member; and a pivot member disposed between both the first distal end of the first elongated member and the second distal end of the second elongated member and the base, the pivot member configured to allow the first elongated member and the second elongated member to pivot in a preferred direction transverse to the extension of the first elongated member and to restrict the first elongated member and the second elongated member from pivoting in an unpreferred direction.

Example 2: A system comprising: an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross-section extending from a bottom chamber wall of the heating chamber into the heating chamber; and a tool for cleaning the aerosol generating device, the tool comprising: a tool base; a first elongated member extending from the tool base, the first elongated member having a first distal end distal from the tool base; and a second elongated member extending from the tool base, the second elongated member having a second distal end distal from the tool base, the first elongated member a heating chamber defined between the first elongated member and the second elongated member, the slot configured to receive the first elongated member and the second elongated member within the heating chamber such that a heating blade is at least partially received within the slot, and at least one of the first distal end of the first elongated member and the second distal end of the second elongated member extending to the bottom chamber wall such that reciprocating motion of at least one of the first distal end of the first elongated member and the second distal end of the second elongated member within the heating chamber is configured to scrape the bottom chamber wall.

Example 3: The system of Example 2, wherein the tool further comprises a pivot member disposed between the base and both the first distal end of the first elongate member and the second distal end of the second elongate member, the pivot member configured to allow the first elongate member and the second elongate member to pivot in a preferred direction transverse to the extension of the first elongate member, and the pivot member configured to restrict the first elongate member and the second elongate member from pivoting in an unpreferred direction.

Example 4: The tool or system described in Example 1 or Example 3, wherein the pivoting member comprises an elliptical member defining a periphery having channels configured to engage ribs of the heating chamber to prevent axial rotation of the first elongated member and the second elongated member within the heating chamber.

Example 5: A tool or system as described in Example 4, wherein the elliptical member comprises a disk or cylinder.

Example 6: A tool or system as described in any one of Examples 1 to 5, wherein the tool further comprises bristles extending from the first elongate member and the second elongate member.

Example 7: A tool or system as described in Example 6, wherein the bristles extend radially outward from the first elongate member and the second elongate member.

Example 8: The tool or system of any one of Examples 1 to 7, wherein the first elongated member has a first flat surface facing the slot, the second elongated member has a second flat surface facing the slot, the first flat surface extending coextensively with the first plane, the second flat surface extending coextensively with the second plane, the first plane and the second plane being parallel planes, and the first plane and the second plane extending parallel to each other.

Example 9: The tool or system of any one of Examples 1 to 7, wherein at least one of the first elongate member and the second elongate member comprises one or more ridges on a surface facing the slot.

Example 10: The tool or system of any one of Examples 1 to 9, wherein the tool further comprises a cap configured to couple to an aerosol generation device, the first elongated member and the second elongated member being configured to contact the bottom wall when the cap is coupled to the aerosol generation device, and a rod connecting the first elongated member and the second elongated member to the cap and enabling reciprocal movement of the first elongated member and the second elongated member.

Example 11: A tool or system as described in any one of Examples 1 to 9, wherein the tool base includes a cleaning head for cleaning the heating chamber of the aerosol generating device.

Example 12: A tool or system according to any one of Examples 1 to 11, wherein the tool comprises three or more elongated members extending from the tool base.

Example 13: A tool or system as described in any one of Examples 1 to 9, wherein the first distal end and the second distal end are laterally movable relative to each other to adjust the width or shape of the slot.

Example 14: The tool or system of Example 13, further comprising one or more bearings configured to engage at least one of the first elongate member and the second elongate member to limit the width of the slot between the first distal end and the second distal end.

Example 15: The tool or system described in Example 14, wherein the one or more bearings are configured to limit the width of the slot between the first distal end and the second distal end to less than 3 millimeters.

Example 16: The tool or system of any one of Examples 13-15, further comprising one or more resilient members positioned adjacent to the first elongate member or the second elongate member to provide lateral resilience to lateral movement of the first and second elongate members.

Example 17: The tool or system of any one of Examples 1 to 16, further comprising a motor coupled to the first elongated member and the second elongated member, the motor configured to provide reciprocating motion of the first elongated member and the second elongated member.

Example 18: The tool or system described in any one of Examples 1 to 17, further comprising: a cleaning station body configured to receive an aerosol generating device, the cleaning station body mechanically coupled to the first elongated member and the second elongated member to enable reciprocating motion of the first elongated member and the second elongated member; and a lever mechanically coupled to the tool base to control the reciprocating motion of the first elongated member and the second elongated member.

Example 19: A kit comprising an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross section extending from a bottom chamber wall of the heating chamber into the heating chamber, and the tool described in any one of Examples 1 and 4-18.

Example 20: A method comprising: inserting a tool having elongated members defining a slot between them into a heating chamber of an aerosol generating device, with a blade of the aerosol generating device received in the slot, and with the end of the elongated member contacting a bottom chamber wall of the heating chamber; and scraping the bottom chamber wall with the end of the elongated member by moving the end of the elongated member in a reciprocating manner.

Example 21: The method of Example 20, further comprising widening the slot defined by the elongated member before inserting the tool into the heating chamber, and narrowing the slot after inserting the tool into the heating chamber and before scraping the bottom chamber wall.

Example 22: The method of Example 20, further comprising moving a lever to move the end of the elongate member in a reciprocating manner.

Example 23: The method of Example 20, further comprising pivoting the elongated member relative to a rod that operatively connects the elongated member to the cap to move the end of the elongated member in a reciprocating manner.

The example will now be further described with reference to the following figures:

FIG. 1 shows a system including a tool for cleaning an aerosol generating device. FIG. 2 shows the tool of FIG. FIG. 3 shows a cross section of the system of FIG. 1 with a tool in place for cleaning the aerosol generating device. FIG. 4 shows another cross section of the system of FIG. 3 rotated 90 degrees. FIG. 5 shows a variation of the tool of FIGS. 1-4 in which the tool base of the tool includes a cleaning head. FIG. 6 shows another variation of the tool in which the tool includes a cap. FIG. 7 shows another variation of the tool, in which the tool includes a cleaning station body and a lever. FIG. 8 shows the tool of FIG. 7 with the cleaning station body in the open position. FIG. 9 shows another modification of the tool in which the tool includes a motor. FIG. 10 shows another variation of the tool, in which the tool includes brush bristles. FIG. 11 shows a bottom view of one embodiment of the tool where the surface facing the slot is flat. FIG. 12 shows an exploded isometric view of the first and second elongated members of the tool of FIG. FIG. 13 shows a bottom view of another embodiment of the tool, in which the surface facing the slot includes a ridge. FIG. 14 shows an exploded isometric view of the first and second elongated members of the tool of FIG. FIG. 15 shows one embodiment of a system that includes a tool for cleaning an aerosol generating device before insertion into the device. FIG. 16 shows the system of FIG. 15 with the tool partially inserted into the aerosol generating device. FIG. 17 shows the system of FIGS. 15 and 16 with the tool fully inserted into the aerosol generating device. FIG. 18 shows another variation of the tool in which the tool includes multiple elongated members. FIG. 19 shows a front view of the plurality of elongated members of FIG. FIG. 20 shows an overhead view of the elongated members of FIGS. FIG. 21 shows a side view of an additional variation of the tool, including a protruding member and a freewheel. FIG. 22 shows a side view of the tool of FIG. 21 with a freewheel attached to the cleaning head. FIG. 23 shows an isometric view of a cap configured to couple with the cleaning head of FIG. FIG. 24 shows a partial view of a tool having a consumable part according to an embodiment herein.

Figures 1-4 show a tool 110 for cleaning an aerosol generating device. Figure 1 shows a system 100 including an aerosol generating device 102 and a tool 110. Figure 2 shows the tool 110. Figure 3 shows a cross-sectional view of the system 100 with the tool 110 in position for cleaning the aerosol generating device 102. Figure 4 shows a cross-sectional view of the system 100 rotated 90 degrees from the view of Figure 3 with the tool 110 in position for cleaning the aerosol generating device 102.

The aerosol generating device 102 includes a heating chamber 104, a heating element 106, a chamber bottom wall 108, and ribs 134 (see FIG. 4). The heating chamber 104 defines a cavity within the aerosol generating device 102. The chamber bottom wall 108 is the interior surface of the heating chamber 104. The heating element 106 extends from the chamber bottom wall 108 into the heating chamber 104. As shown, the heating element 106 is a blade.

The tool 110 includes a tool base 118, a first elongated member 112-1, a second elongated member 112-2 (collectively referred to as the elongated members 112), and a pivot member 120. The elongated members 112 extend from the tool base 118. The first elongated member 112-1 includes a first distal end 114-1 distal to the tool base 118, and the second elongated member 112-2 includes a second distal end 114-2 (collectively referred to as the distal ends 114) distal to the tool base 118. A slot 116 is defined between the elongated members 112. The pivot member 120 is disposed between the tool base 118 and both distal ends 114. The pivoting member 120 includes a channel 122 configured to receive and engage a rib 134 of the heating chamber 104 to prevent axial rotation of the elongated member 112 within the heating chamber.

The pivoting member 120 is configured to allow pivoting of the elongated member 112 in a preferred direction transverse to the extension of the first elongated member. The pivoting member 120 is also configured to restrict pivoting of the elongated member 112 in an unpreferred direction.

The elongated member 112 is configured to be received within the heating chamber 104, such that the heating blade 106 is received within the slot 116, as shown in Figures 3 and 4. Additionally, the distal end 114 extends to the bottom chamber wall 108 such that reciprocating motion of the distal end within the heating chamber scrapes against the bottom chamber wall. In particular, the reciprocating motion can cause the distal end 114 to scrape against the bottom chamber wall adjacent the base of the heating blade 106.

The reciprocating motion is illustrated by dashed arrows 130-1, 130-2, 132-1, and 132-2. When the tool base 118 is moved in the direction of dashed arrow 130-1, the distal end 114 is moved in the direction of dashed arrow 130-2. When the tool base 118 is moved in the direction of dashed arrow 132-1, the distal end 114 is moved in the direction of dashed arrow 132-2. The reciprocating motion allows the heating blade 106 to pass through the slot 116 as the chamber bottom wall 108 is scraped by the distal end 114. The pivoting member 120 is configured to limit the movement of the elongated member 112 and the distal end 114 in directions that include a component perpendicular to the dashed arrows 130-1, 130-2, 132-1, and 132-2. These limitations on movement, including components perpendicular to the dashed arrows 130-1, 130-2, 132-1, and 132-2, are configured to prevent the tool 110 from damaging the heating blade 106 during cleaning.

Figure 5 shows a variation of the tool of Figures 1-4 in which the tool base 218 of the tool 200 includes a cleaning head 202.

The tool 200 includes a tool base 218, a first elongated member 212-1, a second elongated member 212-2 (collectively referred to as the elongated members 212), and a pivot member 220. The elongated members 212 extend from the tool base 218. The first elongated member 212-1 includes a first distal end 214-1 distal to the tool base 218, and the second elongated member 212-2 includes a second distal end 214-2 (collectively referred to as the distal ends 214) distal to the tool base 218. A slot 216 is defined between the elongated members 212. The pivot member 220 is disposed between the tool base 218 and both distal ends 214.

The tool base 218 includes a cleaning head 202. The cleaning head 202 extends away from the distal end 214. The cleaning head 202 is configured to be inserted into the heating chamber of the aerosol generating device and to clean areas of the bottom chamber wall of the heating chamber that may be inaccessible to the distal end 214. The tool 200 is configured to fit within a case consisting of two ends or caps 204-1 and 204-2.

Figure 6 shows another variation of a tool according to embodiments described herein, in which the tool 300 includes a cap 302.

The tool 310 includes a tool base 318, a first elongated member 312-1, a second elongated member 312-2 (collectively referred to as the elongated members 312), a cap 302, and a rod 304. The elongated member 312 extends from the tool base 318. The first elongated member 312-1 includes a first distal end 314-1 distal to the tool base 318, and the second elongated member 312-2 includes a second distal end 314-2 (collectively referred to as the distal ends 314) distal to the tool base 318. A slot 316 is defined between the elongated members 312. The rod 304 extends from the tool base 318 and connects the elongated member 312 to the cap 302. The rod 304 is rotatably connected to the cap 304, allowing the elongated member 312 to be moved in a reciprocating manner.

The reciprocating motion is illustrated by dashed arrows 330-1, 330-2, 332-1, and 332-2. When the tool base 318 is moved in the direction of dashed arrow 330-1, the distal end 314 is moved in the direction of dashed arrow 330-2. When the tool base 318 is moved in the direction of dashed arrow 332-1, the distal end 314 is moved in the direction of dashed arrow 332-2. The reciprocating motion allows the heating element 306 to pass through the slot 316 as the chamber bottom wall 308 is scraped by the distal end 314. Rod 304 functions as a pivot point configured to permit movement of elongate member 312 and distal end 314 in the directions of dashed arrows 330-1, 330-2, 332-1, and 332-2, and to limit movement of elongate member 312 and distal end 314 in directions that include components perpendicular to dashed arrows 330-1, 330-2, 332-1, and 332-2. This limitation of movement that includes components perpendicular to dashed arrows 330-1, 330-2, 332-1, and 332-2 may prevent tool 310 from damaging heating element 306 during cleaning.

The cap 302 is configured to couple to an aerosol generating device. When the cap 302 is coupled to the aerosol generating device, the elongated member 312 may extend into a heating chamber of the aerosol generating device, with the distal end 314 configured to engage with a bottom wall of the chamber of the aerosol generating device. The cap 302 is configured to align the slot 316 with the heating element when coupled to the aerosol generating device.

7 and 8 show another variation of a tool according to embodiments described herein. The tool 400 includes a cleaning station body 404 and a lever 402. In FIG. 7, the cleaning station body 404 is closed and ready to receive or couple to an aerosol generating device. In FIG. 8, the cleaning station body 404 is open, exposing the tool base 418 and the remainder of the lever 402 of the tool 400.

The tool 400 includes a tool base 418, a first elongated member 412-1, a second elongated member 412-2 (collectively referred to as the elongated members 412), a cleaning station body 404, and a lever 402. The elongated members 412 extend from the tool base 418. The first elongated member 412-1 includes a first distal end 414-1 distal to the tool base 418, and the second elongated member 412-2 includes a second distal end 414-2 (collectively referred to as the distal end 414) distal to the tool base 418. A slot 416 is defined between the elongated members 412. The lever 402 is mechanically coupled to the tool base 418 and controls the reciprocating motion of the tool 400. The lever 402 may be operated by a user to control the reciprocating motion of the tool 400.

The cleaning station body 404 is mechanically coupled to the elongated member 412. The mechanical coupling allows for reciprocating motion of the elongated member 412. The cleaning station body 404 is configured to receive an aerosol generating device. The cleaning station body 404 includes a receptacle 406. The receptacle 406 may be shaped to receive the aerosol generating device and to align the slot 416 with the heating element of the aerosol generating device.

Figure 9 shows another variation of a tool according to embodiments described herein, in which the tool 500 includes a motor 506.

The tool 500 includes a tool base 518, a first elongated member (not shown), a second elongated member (not shown), a cleaning station body 504, a lever 502, a motor 506, and a switch 508. The lever 502 is mechanically coupled to the tool base 518 and controls the reciprocating motion of the tool 500. The lever 502 is mechanically coupled to the motor 506, allowing the motor to control the reciprocating motion of the tool 500. The motor may be operably coupled to the switch 508. The switch 508 allows the motor 506 to be turned on or off. The motor 506 may be electrically powered.

Figure 10 shows another variation of a tool according to embodiments described herein. Tool 600 includes brush bristles 602.

The tool 600 includes a tool base 618, a first elongated member 612-1, a second elongated member 612-2 (collectively referred to as the elongated members 612), and bristles 602. The elongated members 612 extend from the tool base 618. The first elongated member 612-1 includes a first distal end 614-1 distal to the tool base 618, and the second elongated member 612-2 includes a second distal end 614-2 (collectively referred to as the distal ends 614) distal to the tool base 618. A slot 616 is defined between the elongated members 612. The bristles 602 extend from the elongated members 612. The bristles 602 may extend radially from the elongated members 612.

Figures 11 and 12 show a tool 700 having a flat surface 702 facing a slot 716, according to embodiments described herein. Figure 11 shows a bottom view of the tool 700. Figure 12 shows an exploded isometric view of the elongated member 712.

The tool 700 includes a tool base (not shown), a pivot member 720, a first elongated member 712-1, and a second elongated member 712-2 (collectively referred to as the elongated members 712). The elongated members 712 extend from the tool base. The first elongated member 712-1 includes a first distal end 714-1 distal from the tool base 718, and the second elongated member 712-2 includes a second distal end 714-2 (collectively referred to as the distal ends 714) distal from the tool base 718. A slot 716 is defined between the elongated members 712.

Each of the elongated members 712 includes a flat surface 702-1, 702-2 (collectively referred to as the flat surface 702) facing the slot 716. Each of the flat surfaces 712 extends along one of the planes 704-1, 704-2 (collectively referred to as the plane 704).

Figures 11 and 12 show a tool 700 having a flat surface 702 facing a slot 716, according to embodiments described herein. Figure 11 shows a bottom view of the tool 700. Figure 12 shows an exploded isometric view of the elongated member 712.

The tool 700 includes a tool base (not shown), a pivot member 720, a first elongated member 712-1, and a second elongated member 712-2 (collectively referred to as the elongated members 712). The elongated members 712 extend from the tool base. The first elongated member 712-1 includes a first distal end 714-1 distal from the tool base 718, and the second elongated member 712-2 includes a second distal end 714-2 (collectively referred to as the distal ends 714) distal from the tool base 718. A slot 716 is defined between the elongated members 712.

Each of the elongated members 712 includes a flat surface 702-1, 702-2 (collectively referred to as the flat surface 702) facing the slot 716. Each of the flat surfaces 712 extends along one of planes 704-1, 704-2 (collectively referred to as the plane 704). Each of the planes 704 is parallel to one another.

The pivoting member may include a plurality of channels 722. At least one of the channels 722 may be configured to engage a rib on the heating chamber to prevent axial rotation of the tool 700 within the heating chamber.

Figures 13 and 14 show a tool 800 having a flat surface 802 facing a slot 816, according to embodiments described herein. Figure 13 shows a bottom view of the tool 800. Figure 13 shows an exploded isometric view of the elongated member 812.

The tool 800 includes a tool base (not shown), a pivot member 820, a first elongated member 812-1, a second elongated member 812-2 (collectively referred to as elongated members 812), and the pivot member 820. The elongated members 812 extend from the tool base. The first elongated member 812-1 includes a first distal end 814-1 distal to the tool base 818, and the second elongated member 812-2 includes a second distal end 814-2 (collectively referred to as distal ends 814) distal to the tool base 818. A slot 816 is defined between the elongated members 812.

Each of the elongated members 812 includes ridges 802-1, 802-2 (collectively referred to as ridges 802). The ridges 802 extend into the slots 816. The ridges 802 may be configured to contact the heating element when received within the heating chamber of the aerosol generating device. The ridges 802 may be configured to rub against the heating element during reciprocating motion of the tool 800. The ridges 802 may be formed of a material that does not damage the heating element during reciprocating motion.

The pivoting member may include a plurality of channels 822. At least one of the channels 822 may be configured to engage a rib on the heating chamber to prevent axial rotation of the tool 800 within the heating chamber.

Figures 15-17 show one embodiment of a system 900 including a tool 910 with an adjustable slot 916. Figure 15 shows the system 900 prior to insertion of the tool 910 into the aerosol generating device 902. Figure 16 shows the system 900 with the tool 910 partially inserted into the aerosol generating device 902. Figure 17 shows the system 900 with the tool 910 fully inserted into the aerosol generating device 902.

The aerosol generating device 902 includes a heating chamber 904, a heating element 906, and a chamber bottom wall 908. The heating chamber 904 defines a cavity within the aerosol generating device 902. The chamber bottom wall 908 is the inner surface of the heating chamber 904. The heating element 906 extends from the chamber bottom wall 908 into the heating chamber 904.

The tool 910 includes a tool base 918, a first elongated member 912-1, a second elongated member 912-2 (collectively referred to as the elongated members 912), a pivot member 920, a bearing 930, and a resilient member 932. The elongated members 912 extend from the tool base 918. The first elongated member 912-1 includes a first distal end 914-1 distal to the tool base 918, and the second elongated member 912-2 includes a second distal end 914-2 (collectively referred to as the distal ends 914) distal to the tool base 918. A slot 916 is defined between the elongated members 912.

The pivot member 920 is disposed between the tool base 918 and both distal ends 914. The pivot member 920 may include a channel (not shown, see e.g., Figures 2 and 4) configured to engage with a rib (not shown, see e.g., Figures 2 and 4) on the heating chamber 904 to prevent axial rotation of the elongated member 912 within the heating chamber. The pivot member 920 includes a bearing window 931 that allows a bearing 930 to be engaged from outside the pivot member 920.

As shown, the tool base 918 can be pinched or manipulated to adjust the width of the slot between the distal ends 916. The bearings 930 are each configured to engage one of the elongate members 912 to limit the width of the slot between the distal ends 916. The bearings 930 are configured to engage the sidewalls of the elongate members 912 and the pivot member 920 to limit the width of the slot between the distal ends 916. Prior to inserting the tool 910 into the heating chamber 904, the width of the slot between the distal ends 916 is limited so that the elongate member 912 can be inserted into the heating chamber 904. In other words, the bearings 930 limit the width of the slot between the distal ends 916 so that the distance between the outer edges of the distal ends 914 is less than the diameter of the heating chamber 904. When the tool 910 is inserted into the heating chamber 904, the bearings 930 are configured so that at least a portion of each of the bearings 930 extends through a respective bearing window 931, thereby engaging the interior wall of the heating chamber 904. Such engagement further limits the width of the slot between the distal ends 916, holding the distal ends in place to scrape the bottom chamber wall 908 when the tool 910 is fully inserted into the heating chamber 904, as shown in FIG. 17 .

The resilient member 932 is positioned adjacent to the elongated member 912 and provides lateral resilience to the lateral movement of the first and second elongated members 912. The resilient member 932 may limit the width of the slot 916 when the tool base 918 is not being manipulated. The resilient member 932 may be a resilient ring.

FIG. 18 illustrates one embodiment of a tool 1000 having multiple elongate members 1012. The tool 1000 includes a tool base 1018, elongate members 1012, distal ends 1014, and slots 1016. The elongate members 1012 extend from the tool base 1018. Each of the elongate members 1012 includes a distal end 1014. Slots 1016 are defined between adjacent elongate members 1012. The elongate members 1012 may be flexible to allow any one of the slots 1016 to accommodate a heating element.

Figure 19 shows a variation of the elongate member 1012 of Figure 18 according to embodiments described herein. Elongate member 1012-1 includes a tapered side 1022. Figure 20 shows another variation of the elongate member 1012 of Figure 18 according to embodiments described herein. Elongate member 1012-2 includes a distal end 1014-2 with a tapered shape.

Figures 21-22 show a tool 1100 having one or more protruding elements 1122 and a freewheel 1124. Figure 21 shows the tool 1100 without any attachment. Figure 22 shows the tool 1100 coupled to a cleaning head. Figure 23 shows a cap 1130 configured to engage with the cleaning head 1102 and tool 1122 of Figure 22.

The tool 1100 includes a tool base 1118, a first elongated member 1112-1, a second elongated member 1112-2 (collectively referred to as the elongated members 1112), and a pivot member 1120. The elongated members 1112 extend from the tool base 1118. The first elongated member 1112-1 includes a first distal end 1114-1 distal to the tool base 1118, and the second elongated member 1112-2 includes a second distal end 1114-2 (collectively referred to as the distal ends 1114) distal to the tool base 1118. A slot 1116 is defined between the elongated members 1112. The pivot member 1120 is disposed between the tool base 1118 and both distal ends 1114.

The tool base 1118 is coupled to a freewheel 1124. The freewheel 1124 rotates independently of the tool base 1118 and the elongated member 1112. The freewheel 1124 may prevent axial rotation of the elongated member 1112 within the heating chamber of the aerosol generating device. The freewheel 1124 may be configured to couple to the cleaning head 1102, as depicted in FIG. 22. The freewheel 1124 may allow the cleaning head 1102 and the tool 1100 to rotate independently of each other when coupled together.

The cleaning head 1102 includes a scraping surface 1104 and an embossed member 1106. The scraping surface 1104 may be configured to clean the surface of a heating chamber of an aerosol generating device. The embossed member 1106 may be coupled to a cap 1130.

The cap 1130 may be configured to couple to the cleaning head 1102. The cap 1130 may receive the tool 1100 within an internal volume 1132 when coupled to the cleaning head 1102. The cap may include a debossed member 1134. The debossed member 1134 may be configured to engage with the embossed member 1106 to couple the cap 1134 to the cleaning head 1102.

Figure 24 shows a partial view of a tool 1200 having a consumable member 1202 in accordance with an embodiment of the present disclosure.

The tool 1200 includes a tool base 1218, an elongated member 1212, and a pivoting member 1220. The elongated member 1212 extends from the tool base 1218. A slot 1216 is defined between the elongated member 1212. The pivoting member 1220 is disposed between the tool base 1218 and both distal ends 1214.

The pivot member 1220 may include one or more channels 1222. The channels 1222 are flared at a receiving end 1224. The receiving end 1224 of each channel 1222 is configured to receive a rib.

The tool 1200 may include a consumable member 1202. The consumable member 1202 may include a recess 1204. The recess 1204 may be configured to receive an elongated member 1212.

For purposes of this specification and the appended claims, unless otherwise indicated, all numbers expressing amounts, quantities, percentages, and the like should be understood in all instances to be modified by the term "about." Also, all ranges include the disclosed maximum and minimum points, and any intermediate ranges therebetween, which may or may not be specifically recited herein. Accordingly, in this context, the number A is understood as A ± 10 percent. Within this context, the number A may be considered to include a numerical value that is within the usual standard error for the measurement of the property that the number A modifies. In some cases, as used in the appended claims, the number A may deviate by the percentages recited above, provided that the amount by which A deviates does not materially affect the basic and novel property(ies) of the claimed invention. Also, all ranges include the disclosed maximum and minimum points, and any intermediate ranges therebetween, which may or may not be specifically recited herein.

Claims (17)

1. A tool for cleaning an aerosol generating device having a heated chamber, said tool comprising:
a tool base;
a first elongated member extending from the tool base, the first elongated member having a first distal end distal to the tool base;
a second elongated member extending from the tool base, the second elongated member having a second distal end distal to the tool base;
a second elongated member, a slot defined between the first and second elongated members;
a pivot member disposed between the tool base and both the first distal end of the first elongate member and the second distal end of the second elongate member;
10. A tool, wherein the pivoting member is configured to allow the first elongated member and the second elongated member to pivot in a preferred direction transverse to an extension of the first elongated member, and the pivoting member is configured to restrict the first elongated member and the second elongated member from pivoting in an unpreferred direction. The tool of claim 1, wherein the pivoting member comprises an elliptical member defining a periphery having channels configured to engage ribs of the heating chamber to prevent axial rotation of the first elongated member and the second elongated member within the heating chamber. The tool of claim 2, wherein the elliptical member comprises a disk or a cylinder. The tool described in any one of claims 1 to 3, further comprising brush bristles extending from the first elongated member and the second elongated member. The tool or system of claim 4, wherein the bristles extend radially outward from the first elongated member and the second elongated member. The tool of any one of claims 1 to 5, wherein the first elongated member has a first flat surface facing the slot, the second elongated member has a second flat surface facing the slot, the first flat surface extending through a first plane, the second flat surface extending through a second plane, the first plane and the second plane being parallel planes, and the first flat surface and the second flat surface extending parallel to each other. The tool described in any one of claims 1 to 5, wherein at least one of the first elongated member and the second elongated member includes one or more ridges on a surface facing the slot. The tool
a cap configured to couple to the aerosol generation device, the first elongated member and the second elongated member configured to contact a bottom wall when the cap is coupled to the aerosol generation device; and
8. The tool of claim 1, further comprising: a rod operatively connecting the first elongate member and the second elongate member to the cap to enable reciprocal movement of the first elongate member and the second elongate member. The tool described in any one of claims 1 to 7, wherein the tool base includes a cleaning head for cleaning the heating chamber of the aerosol generating device, the cleaning head including one or more scraping surfaces. The tool described in any one of claims 1 to 7, wherein the first distal end and the second distal end are movable laterally relative to each other to adjust the width of the slot between the first distal end and the second distal end. The tool or system of claim 10, further comprising one or more bearings configured to engage at least one of the first elongate member and the second elongate member to limit the width of the slot between the first distal end and the second distal end. 12. The tool of any one of claims 1 to 11, further comprising a motor coupled to the first elongate member and the second elongate member, the motor configured to provide reciprocating movement of the first elongate member and the second elongate member. The tool
a cleaning station body configured to receive the aerosol generating device, the cleaning station body being mechanically coupled to the first elongated member and the second elongated member to enable reciprocal movement of the first elongated member and the second elongated member;
13. The tool of any one of claims 1 to 12, further comprising a lever mechanically coupled to the tool base for controlling the reciprocating movement of the first elongate member and the second elongate member. 1. A system comprising:
an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross section extending from a bottom chamber wall of the heating chamber into the heating chamber;
A system comprising a tool according to any one of claims 1 to 13. 15. The system of claim 14, wherein the first elongated member and the second elongated member are configured to be received within the heating chamber such that the heating blade is at least partially received within a slot, and wherein at least one of the first distal end of the first elongated member and the second distal end of the second elongated member extends to the bottom chamber wall such that reciprocating motion of at least one of the first distal end of the first elongated member and the second distal end of the second elongated member within the heating chamber is configured to scrape the bottom chamber wall. 1. A system comprising:
an aerosol generating device comprising a heating chamber and a heating blade having a substantially rectangular cross section extending from a bottom chamber wall of the heating chamber into the heating chamber;
1. A tool for cleaning an aerosol generating device, said tool comprising:
a tool base;
a first elongated member extending from the tool base, the first elongated member having a first distal end distal to the tool base;
a second elongated member extending from the tool base, the second elongated member having a second distal end distal to the tool base; a slot defined between the first elongated member and the second elongated member;
the first elongated member and the second elongated member are configured to be received within the heating chamber such that the heating blade is at least partially received within a slot, and at least one of the first distal end of the first elongated member and the second distal end of the second elongated member extends to the bottom chamber wall such that reciprocating motion of at least one of the first distal end of the first elongated member and the second distal end of the second elongated member within the heating chamber is configured to scrape the bottom chamber wall. 17. The system of claim 16, wherein the tool further comprises a pivot member disposed between the tool base and both the first distal end of the first elongate member and the second distal end of the second elongate member, the pivot member configured to allow the first elongate member and the second elongate member to pivot in a preferred direction transverse to an extension of the first elongate member and the pivot member configured to restrict the first elongate member and the second elongate member from pivoting in an unpreferred direction.