Abstract: An inflation valve for a tubeless tire may include a valve body defining a cavity having a proximal opening and a distal opening. A valve stem extends through the cavity and includes a plug at a proximal end of the valve stem. The proximal opening of the cavity is defined by a beveled surface, and an outer diameter of the beveled surface is larger than an inner diameter of the valve body. The valve is transitionable between: a) a closed position, where a resilient surface of the plug engages the beveled surface to seal the cavity, and b) an open position, where the resilient surface of the plug is spaced from the beveled surface to unseal the cavity.

Abstract: A valve assembly for mounting on a substrate via rotational engagement with a base of the valve assembly, and a cap for such a valve assembly. A body of the cap is rotatably engageable with the base between opposing first and second terminal ends. At each of the first and second terminal ends, the body and the base abut each other to prevent rotation between the body and the base. As a result, torque applied to the cap is transmitted to the base to vary rotational engagement of the base with the substrate. A slot formed in the cap may be suitable to receive a protrusion on the base and may fork into two separate portions that terminate in opposing terminal ends to allow selective engagement of the protrusion with the two portions. The protrusion abuts against the terminal ends to transmit torque from the cap to the base.

Abstract: In an aspect, an inflatable object includes an object body enclosing a chamber to receive air, and a valve mounted to the inflatable object body, including a valve body defining a passageway between the chamber and an ambient environment. The valve body has a shoulder. The valve body defines an outside end, which opens to the ambient environment, and an inside end, which opens into the chamber. The valve includes a one-way flap that is movable between an open position to permit fluid communication between the chamber and the ambient environment through the passageway, and a closed position. The one-way flap is biased to the closed position with a closing force selected to be overcomable to move the one-way flap to the open position by an airflow having a speed that is less than about 48 m/s, and which is at a pressure lower than 1 atmosphere.

Abstract: A valve nozzle structure for an inflatable cushion includes an outer body, an inner body, and a diaphragm member. The diaphragm member is assembled in the inner body. The inner body is assembled in the outer body. The valve nozzle structure is able to provide one-way inflation with an automatic check function and deflation. The outer body further includes a holding plate configured to release the sealing state of the diaphragm member. Thus, the valve nozzle structure can achieve an automatic and continuous deflation function. The inner body is detachably connected to the outer body, which is beneficial for maintenance and replacement of the parts.

Abstract: An air injection apparatus is provided according to one embodiment of the present invention. The air injection apparatus includes a main body in which an air passage is formed, and an opening and closing part which is coupled to one end of the main body and in which an opening and closing protrusion having a predetermined length, protruding toward the air passage, and configured to open or close the air passage is formed on an inner surface thereof, wherein at least a part of the opening and closing protrusion may be inserted into the air passage to seal the air passage when the opening and closing part is moved in a first direction toward the main body.

Abstract: A tire valve assembly includes a stem and a valve unit. The valve unit includes a movable part and a seal member. When introducing pressurized air into the tire valve assembly, the valve unit moves to a position in the stem to allow the pressurized air to flow into the tire. When the pressurized air is stopped from entering the tire valve assembly, the valve unit is pushed back by the pressure in the tire to seal the inlet so that the pressurized air in the tire does not leak to keep the tire pressure.

Abstract: An inflation system for an evacuation system may comprise an inflator and a controller operationally coupled to the inflator. The inflator may include a solid gas generating material and an igniter configured to ignite in response to receiving an ignite signal. The solid gas generating material may be configured to generate a gas in response to an ignition of the igniter. The controller may be configured to send the ignite signal to the inflator.

Abstract: In an aspect, an inflatable object includes an object body enclosing a chamber to receive air, and a valve mounted to the inflatable object body, including a valve body defining a passageway between the chamber and an ambient environment. The valve body has a shoulder. The valve body defines an outside end, which opens to the ambient environment, and an inside end, which opens into the chamber. The valve includes a one-way flap that is movable between an open position to permit fluid communication between the chamber and the ambient environment through the passageway, and a closed position. The one-way flap is biased to the closed position with a closing force selected to be overcomable to move the one-way flap to the open position by an airflow having a speed that is less than about 48 m/s, and which is at a pressure lower than 1 atmosphere.

Abstract: A valve for inflating and deflating an inflatable element includes a valve housing fluid connected to the inflatable element, an at least one hole extending through the valve housing and accommodated to let a fluid flow in and out the valve housing for inflating and deflating the inflatable element, and a flap disposed next to the at least one hole inside the valve housing, such that the flap covers the at least one hole and behaves as a flap when inflating the inflatable element. The flap is inflatable and is fluid connected with a nozzle disposed outside the valve housing. The inflatable flap, when inflated, uncovers the at least one hole releasing a fluid flow through the at least one hole for deflating the inflatable element.

Abstract: An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and/or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

Abstract: An aspirator for an inflatable assembly may comprise a housing and an inlet flap biased away from an interior of the housing. A pressure relief flap may be biased toward the interior of the housing. A manifold may be located in the interior of the housing and configured to output a primary gas flow toward an outlet of the housing. A nozzle may be fluidly coupled to the manifold. The nozzle may be configured to output the primary gas flow to the manifold.

Abstract: A drinking vessel has a cup with a removable lid having at least one inlet-outlet opening which receives an elastic straw-vent assembly having a flexible tubular straw or spout and a ventilation member that defines an air passageway and a vent opening. A vent actuator is operably coupled to the ventilation member and configured to change a state of the ventilation member between a ventilation state and a closed state. A cover movably mounted on top of the lid, shiftable between a closed and an open position, comprises a cam on an inward surface of the cover which is configured to contact the vent actuator during movement of the cover member to change the state of the ventilation member. In the closed position the cover engages the straw, folding the straw against the lid, and in the open position, the straw fluid passageway and the vent opening are unobstructed.

Abstract: An inflation system for tubeless bicycle tires may include a valve, a sealant canister, a pump head, and/or a valve core adapter. The valve, sealant canister, and pump head may collectively facilitate sealant injection into a tire by a user. The valve has an external valve seat, and includes a valve body, a valve stem extending through the length of the valve body, and a retaining mechanism for the valve stem disposed interior to the valve body. The valve stem is configured to move relative to the valve body, such that a resilient seating surface disposed at a proximal end of the valve stem is displaced relative to a valve seat formed by an exterior surface of a proximal end of the valve body.

Abstract: An autoclave including a Faraday cage, which when placed in a microwave oven sterilizes N95 masks or any other metal surgical devices through pressurized steam. The Faraday cage prevents metal inside the cage from arching when inside the microwave oven. Pressure build up occurs inside a container, which includes an umbrella valve. The container encloses the Faraday cage, which is adjustable to fit many sized objects.

Abstract: The present invention relates to expandable bodies or systems with bounding walls or bladder structures and at least one valve assembly thermally bonded thereto. More particularly, the present invention provides a fluid valve assembly for expandable fluid-containing bodies typically made from a thermoplastic rubber material or the like, which will exhibit significantly increased strength and durability during expansion and while expanded, especially at and around the interface between the fluid valve assembly and the bounding wall of the expandable body because of the enhanced strength of the fluid valve assembly interface through thermal sealing.

Abstract: A formation aid, for use in the forming of receptacles in a swimming pool, includes a three-dimensional body having an essentially conical shape. The three-dimensional body of the formation aid includes a narrow end, for placement near an interior edge of the swimming pool during formation of the swimming pool; and a wide end, for placement remote from the interior edge of the swimming pool, in order to form a receptacle.

Abstract: An American style football including an inflatable prolate spheroidal shaped bladder, a lining positioned over the bladder, a cover assembly, a lacing, and an electronic circuit positioned between the lining and the cover assembly and generally aligned with the lacing. The cover assembly includes at least first, second, third and fourth cover panels collectively positioned over the bladder and the lining. The lacing is coupled to the first and fourth cover panels. The electronic circuit includes at least one sensor and the electronic circuit is configured to produce a signal to enable at least one characteristic of the football to be monitored during use.

Abstract: A valve for an inflatable device is disclosed. The valve includes a base configured to seal to a fluid impermeable wall of a bladder of the inflatable device, a cap including a rim, and a seal. The bases defines an orifice for exhausting fluid from an interior of the inflatable device and a sealing surface. The rim can include a generally circular peripheral region including at least one rib located about an underside of the peripheral region and a cavity defined in part by at least one wall located radially inward of the rib. The seal can include a first end region secured to the cap within the cavity between the at least one wall and the at least one rib and a second end region configured to move with the at least one first end region secured to the cap.

Abstract: A multifunctional valve features a pumping function and a vacuuming function. The valve can be implemented in any closed container having a removable lid or a bag having a resealable zipper or any other similar sealable feature. The valve also features a tethered plug to additionally provide sealing. The valve incorporates a spacer or washer when used in thin walls to provide support. When the valve is used with a bag, the spacer or washer incorporates footing so that the valve does not collapse on its own when the valve is used in conjunction with a vacuum pump or a gas pump.

Abstract: Vented precipitation guarding manhole cover assemblies include a manhole cover having a manhole cover protrusion. The manhole cover protrusion has a protrusion edge, a protrusion surface contiguous with and extending from the protrusion edge and a protrusion apex contiguous with the protrusion surface. A manhole cover vent opening extends through the manhole cover protrusion and the manhole cover.

Abstract: A valve for an inflatable device includes a first region configured to seal to a fluid impermeable wall of a bladder of the inflatable device, a cap including a rim, and a seal. The base includes a second region that defines an orifice for exhausting fluid from an interior of the inflatable device, the second region configured to provide a sealing surface. Further, the rim can include a generally circular peripheral region including at least one rib located about an underside of the peripheral region and a cavity defined in part by at least one wall located radially inward of the rib. The seal can include a first end region secured to the cap within the cavity between the at least one wall and the at least one rib and a second end region configured to freely move with the at least one first end region secured to the cap.

Abstract: A wheel rim is equipped with an inflation valve (10) that is capable of elastic deformation adapted to be positioned in an opening (30) in the wheel rim (31) of a wheel of a motor vehicle. The valve (10) exhibits a valve body (12) made from an elastically deformable material surrounding a valve core (11) adapted to form an air passageway (15). The valve body (12) is provided with a sealing groove (21) adapted to receive the wheel rim, and with an intermediate part (22) having a diameter greater than the opening in the wheel rim. The inflation valve (10) is provided in addition with an element for the distribution (40) of shear forces pre-installed on the valve body (12). A method of installation of the inflation valve is also described.

Abstract: Various embodiments of the present disclosure provide a reusable valve in which a seal portion is co-molded with and overmolded to the valve stem to provide a secure mechanical bond therebetween. In one embodiment, the valve includes a snap fit between the valve stem and a retaining cap to provide easy assembly of the valve as well as an efficient and compact retention mechanism for a biasing spring and the valve stem in relation to the valve housing. In one embodiment, the valve includes an easy-to-use opening and closing mechanism that provides tactile feedback to the user when moving the valve stem to an open position and to a closed position to inflate, deflate, or maintain air or gas pressure in the inflatable article. The present disclosure also provides a dunnage bag with such valve.

Abstract: A device is provided for plugging a hole in a membrane. The device comprises a cap including a chamber for storing compressed gas, an inflatable bladder connected to the cap and a first conduit via which fluid can escape from a distal side of the membrane whilst the device is inserted into the hole. The device further comprises a first control means for controlling the escaping fluid through the device, a second conduit via which a compressed gas can flow from the chamber into the inflatable bladder and a second control means for controlling the flow of compressed gas from the chamber into the bladder. The bladder is arranged to be inserted at least partially through the hole in the membrane in a non-inflated state and at least partially inflated after it has been inserted therein.

Abstract: An air valve device is adapted to be fitted into an opening of an inflatable article, and includes a valve seat having a seat body that is disposed between an inflating port and a conduit, and a valve disc unit disposed in the conduit to be moved between opened and closed positions, and having a valve disc connected with a plunger, an elastomeric seal ring superimposed on a padded region of the valve disc. A rigid retaining cap is disposed to bring a base layer of the seal ring in an abutting engagement with the padded region of the valve disc so as to secure the seal ring to the valve disc while permitting a sealing marginal layer of the seal ring to be air-tightly engaged with the seat body in the closed position.

Abstract: A housing has an upper end, a lower end, and an opening extending between the upper and lower ends, the housing being sealingly attachable to an inflatable device. A check valve has a body member with an upper end, a lower end, an outer surface sized and shaped to be selectively matingly received in the opening of the housing, and an inner surface defining a passageway. The check valve is coupled to the housing by a first tether. A cap has an upper end, a lower end, and an outer surface sized and shaped to be selectively matingly received in the passageway of the check valve. The cap is coupled to the housing by a second tether.

Abstract: Twisting off the existing cap that sits on the Valve of the tire is time consuming. Also one needs to check the vehicle to find the appropriate air-pressure for the tire. The IDC Cap is quick and convenient to remove just pull and the IDC Cap is removed or push the IDC Cap into place on the valve. In addition, there is identification on the top of the cap that corresponds with appropriate tire pressure or value that is required.

Abstract: The disclosed embodiments include a valve stem assembly for a tire pressure monitoring system sensor. The assembly can comprise a valve stem body, and a grommet for purposes of engaging a vehicle wheel. The valve stem body can comprise an attachment end to be attached to a pressure sensor to determine tire air pressure, and an air transfer end to receive a gas to fill the tire. The grommet can further comprise flanges with dimensions such that the grommet can limit movement of the valve stem assembly relative to the vehicle wheel. Methods for installing the valve stem assembly are also disclosed.

Abstract: A cap for a valve stem includes a housing extending along an axis from a first end to a second end. A bore extends along the axis from the first end toward the second end and a cup-shaped wall extends circumferentially about the bore for receiving the valve stem. A threaded surface is disposed in the bore for threadedly engaging the valve stem. A flange extends from the first end transversely to the axis and circumferentially around the bore for abutting the rim of the wheel to stabilize the housing relative to the rim of the wheel. Ribs are radially spaced about the housing and extend outwardly from the wall of the housing to the flange reinforcing the housing relative to the flange.

Abstract: A tire air valve having the function of indicating tire pressure includes an air valve casing having an inner center post orderly installed thereon with a lower locking block, a first spring, an upper locking block and a second spring. A fixed member is secured on the upper locking block, and a cap is covered on the air valve casing and provided with an upper indicating member, a third spring, a lower indicating member and a locking ring. The upper indicating member has an outer wall formed into a low pressure region and a warning region, while the lower indicating member has an outer wall formed into a safety region. The upper and the lower locking block can completely seal up the air valve to prevent air from leaking, and a driver can judge whether tire pressure is normal by visual observation through the cap on the air valve casing.

Abstract: A universal valve cap for pneumatic tire valve stems allows for quick and easy access to replenish air in tires. The bottom portion of the cap has an inner thread design, engagable with the threaded valve stem, and the top or crown part of the cap has a snap fastener fitting, allowing for inflation of the tire. The upper portion of the cap has a compression spring or memory plastic that offers resistance to a compressive force that will enable the upper section of the cap to be pressed down over the stationary bottom half of the cap when pressure is applied. The bottom portion of the cap can be pushed down and locked into an open position when inserting air or checking tire pressure. A twist of the cap releases the upper portion to its original position, allowing the top of the cap to be snapped closed.

Abstract: An inflating valve has a body and a valve disk. The body is hollow and has a passage defined through the body and a holding tab. The passage has an inner surface and a bottom opening defined in the bottom of the body. The holding tab is radially connected to the inner surface of the passage and has a holding hole defined through the holding tab. The valve disk is attached securely to the bottom of the body to close the bottom opening of the passage and has a holding rod formed on and protruding from the valve disk and engaging the holding hole in the holding tab. Accordingly, the valve disk can be automatically opened by the pressured air and automatically closed by the recoil force provided by the holding tab.

Abstract: An article of manufacture, a quick cap device for use with a tire valve stem, which may be a pushed-to-put-on/squeezed-to-remove tire valve stem cap. Optional interior female threads and grooves may also be used with versions of the invention.

Abstract: A self-sealing valve comprises a valve housing having a fluid conduit, a valve seat, a diaphragm and a support member. The valve housing is configured to pass fluid through the fluid conduit. The diaphragm provides a self-seal of the fluid conduit. The support member is configured to retain a portion of a diaphragm. The support member and diaphragm are configured to position the flexible diaphragm against the valve seat to seal the fluid conduit in a closed position of the self-sealing valve, and to facilitate movement of the diaphragm under a bias in a first direction away from the valve seat to an open position.

Abstract: A valve set includes a valve body which includes a central hole and multiple passages are located around the central hole. A tubular portion extends from the valve body a flexible plate has an insertion inserted into the central hole of the valve body and the flexible plate seals the passages from an underside of the valve body. A core member is securely engaged with the tubular portion has an inlet tube. Multiple releasing probes extend from an underside thereof. A spring is mounted to the inlet tube and biased between a shoulder on the inlet tube and an inner surface of the valve body. A bottom cap is connected to the underside of the valve body. Air is introduced into the valve set via the inlet tube and released by pushing the core member and the releasing probes push the flexible plate away from the passages.

Abstract: A valve set includes a valve body which includes a central hole and multiple passages are located around the central hole. A tubular portion extends from the valve body a flexible plate has an insertion inserted into the central hole of the valve body and the flexible plate seals the passages from an underside of the valve body. A core member is securely engaged with the tubular portion has an inlet tube. Multiple releasing probes extend from an underside thereof. A spring is mounted to the inlet tube and biased between a shoulder on the inlet tube and an inner surface of the valve body. A bottom cap is connected to the underside of the valve body. Air is introduced into the valve set via the inlet tube and released by pushing the core member and the releasing probes push the flexible plate away from the passages.

Abstract: A rotary inflation nozzle includes a block assembly seat, a housing, and a cap. A needle tube and a block member are mounted in the housing and the cap and mounted to a front end of the block assembly seat. The block assembly seat includes an end having a receiving section. The block assembly seat further includes an air passageway in communication with the receiving section. The receiving section has an inner diameter larger than that of the air passageway. A limiting section is formed on the front end of the block assembly seat and has an outer diameter larger than the block assembly seat. The needle tube includes first and second engaging ends. The first engaging end of the needle tube is received and retained in the receiving section. The block member includes a central hole. The central hole of the block member receives and is retained in place by the second engaging end of the needle tube.

Abstract: A self-sealing valve comprises a valve housing having a fluid conduit, a valve seat, a diaphragm and a support member. The valve housing is configured to pass fluid through the fluid conduit. The diaphragm provides a self-seal of the fluid conduit. The support member is configured to retain a portion of a diaphragm. The support member and diaphragm are configured to position the flexible diaphragm against the valve seat to seal the fluid conduit in a closed position of the self-sealing valve, and to facilitate movement of the diaphragm under a bias in a first direction away from the valve seat to an open position.

Abstract: A magnetic dust cap for a pneumatic tire comprising an external valve stem having a threaded top portion having a width, a length, a top end and a bottom end and a rubberized bottom portion having a width and a top end. The magnetic dust cap comprises a body for capping the external valve stem and magnetic means disposed within the body to removably adhere to a washer. The washer is adapted for threaded engagement over the threaded top portion of the valve stem.

Abstract: An inflation system includes an inflation device and a valve assembly. The inflation device includes a contact surface defining a fluid passage. The valve assembly includes a valve and a contact surface adapted to engage with the contact surface of the inflation device. A seal is formed around the fluid passage when a user applies a manual force to engage the contact surface of the inflation device with the contact surface of the valve assembly.

Abstract: An inflation valve for inflating containers with non-rigid walls, has a body with a passage and first tubular part with a first opening at one end leading into the passage and a second opening at its opposite end leading into the passage. A cap is removably fitted over the body for closing the first opening to the passage. A first sealing disc, which closes off the second opening to the passage, is adapted to open the second opening when an inflation device is inserted into the second opening to allow gas to be inserted into the container through the second opening. A guide member is located within the first tubular part to support a spring for assisting the first sealing disc in closing off the second opening.

Abstract: A cargo or dunnage air bag inflation and deflation system comprises an inflation-deflation valve member, a cap-type plug member, and an air gun implement having a fill nozzle and an exhaust nozzle mounted upon opposite ends thereof for respective connection to the valve member in order to perform inflation and deflation operations. The valve member comprises a flapper or check valve element pivotally mounted upon the valve member so as to permit inflation or deflation of the cargo or dunnage air bag when the flapper or check valve element is moved away from its valve seat, and to substantially maintain the cargo or dunnage air bag in its inflated state when the flappper or check valve element is effectively seated upon its valve seat.

Abstract: A system, storage bag and method for evacuating air from a convention self-sealing storage bag. An air valve assembly includes inner and outer valve members, the inner valve member being positionable within the storage bag and having a tapered piercing spout adapted to pierce through a flexible panel. The outer valve member has a housing lockingly engagable over the piercing spout protruding outwardly through the panel. A perimeter edge of the housing is sealingly engagable against the bag panel and a mating groove formed into the inner valve member. The inner valve member is configured for temporary sealing engagement against the inner surface of the bag panel as air is removed from the interior of the storage bag out through the piercing spout and housing air outlets by a vacuum pump.

Abstract: An inflation valve assembly comprises a longitudinally extending conduit, a cap, a normally closed elastic double-duckbill valve, and a hollow nozzle insert. The longitudinally extending conduit has a first longitudinal end and a second longitudinal end. The cap is configured and arranged for removable attachment to the first longitudinal end of the conduit. The normally closed elastic double-duckbill valve sealingly engages within the conduit with intersecting radially elongated slits extending longitudinally there through. The hollow nozzle insert is configured and arranged for longitudinal insertion into the conduit through the first longitudinal end for separating both slits and opening the double-duckbill valve so long as the nozzle insert remains inserted within the conduit.

Abstract: A safety valve device is mounted on an inflatable apparatus and has a body, a manual seal assembly and a check valve. The body has an annular sidewall and an annular bracket mounted on the sidewall and having a central opening. The manual seal assembly is connected to the body and has a knob, a seal and a spring. The knob is mounted rotatably on the body and has multiple compression ridges. The seal is mounted slidably between the knob and the annular bracket, selectively closes the central opening and has multiple compression ridges corresponding to those on the knob. The spring biases the seal to open the central opening. The check valve has a diaphragm that selectively closes the central opening. The inflatable apparatus with the safety valve device has a good hermetic effect.

Abstract: A three-way connecting device for a tire pressure detector includes a three-way pipe and a nozzle. The three-way pipe has a tunnel therein, a first opening, a second opening and a third opening communicated with the tunnel, a first coupling portion around the first opening to connect an air pump to the first opening, a second coupling portion around the second opening to connect a tire pressure detector to the second opening, a third coupling portion around the third opening to connect a nozzle of a tire to the second opening. The nozzle is mounted in the first opening of the three-way pipe to be connected to the air pump. The three-way connecting device may help the inflation of tire without having to disassemble and reassemble the tire pressure detector.

Abstract: A valve (20) for an inflatable product. One valve includes a cap (56) that provides a double seal (58, 60). An inner seal (58) closes an opening (66) for the valve (20). The inner seal (58) and the opening (66) are mounted in a chamber, and the chamber is closed by a second, outer seal (60) that provides a backup in case of failure of the inner seal (58). A flapper valve (22) may be used as another seal. Another embodiment of a valve (120) includes a rigid cap (124). Still another embodiment of a valve (220) includes a plug (232) that is attached to a valve opening. Moving the valve opening forward and backward plugs a rear opening (230) in the valve, closing the valve (220).

Abstract: A capping system for a container having a valve stem, comprising: a flexible tether having a first end region, a second end region, and a central region between the first and second end regions. A first connector is located at the first end region for attaching the tethered capping system to the container. A first cap is located in one of the central and second end regions and sized to frictionally fit over the valve stem. The other of the central and second end regions has a second connector for attaching a second cap to the tether. The second cap may be a threaded pressure cap for correspondingly engaging threads located on the valve stem. In alternative embodiments, the first connector can be located in the central region, and the first cap and second connector for the second cap are located in the first and second end regions.

Abstract: An inflatable device that includes a inflatable component and a base inflatable component. The inflatable component is releasably connected to the base inflatable component by a component connector. The component connector includes a base and a cap, wherein the cap releasably connected to the base.

Abstract: A valve for an airtight flexible container such as a dunnage bag including a bowl with openings and extending through an opening in the container A flange around the rim of the bowl is heat welded to the container around the opening. One end of a housing is screwed into the rim of the bowl. A cap is removably press fit onto an opposite end of the housing. A spider extending across the housing supports a plug which is spring mounted on the spider and biased to close the lower end of the housing by compressed air in the container. Compressed gas inside the container is released by removing the cap and pressing on the plug to dislodge the plug from its seat on the one end of the housing or by unscrewing and entirely separating the housing from the bowl.