Abstract: A simple, compact, and economical motor/pump unit for supplying vacuum to a pneumatic brake booster of a motor-vehicle brake system, wherein the motor/pump unit is designed as a diaphragm pump having a single elastomeric diaphragm, which is moved by an electrically operated motor unit by an eccentric drive, and has a pump housing and a working-space cover and the diaphragm is clamped between the pump housing and the working-space cover at the radial outer edge of the diaphragm in a sealing manner and the working-space cover is designed as a multi-part working-space cover having an upper cover, a lower cover, and an inlet valve and an outlet valve, which are arranged between the upper cover and the lower cover and control the air circulation through the working space.

Abstract: An expansion valve (1) comprising an inlet opening (2) and a distributor (4) being arranged to distribute fluid medium received from the inlet opening to at least two parallel flow paths (3). At least two outlet openings (3) are adapted to deliver fluid in an at least partially gaseous state, and each outlet opening is fluidly connected to one of the parallel flow paths. A first valve part (7) and a second valve part (5) are arranged movably relative to each other in such a manner that the mutual position of the first valve part and the second valve part determines the opening degree of the expansion valve. Since the distributor (4) forms part of the expansion valve, it distributes the fluid medium to the parallel flow paths prior to or during expansion of the fluid medium, i.e. while the fluid medium is in a substantially liquid state. This makes it easier to control the distribution of fluid medium to the parallel flow paths in a uniform manner.

Abstract: A cyclone separator for a superfluid extraction apparatus comprising a cyclone inlet weldment comprising a cyclone, a collector tube connected to the cyclone inlet weldment, and a needle support manifold extending from the cyclone inlet weldment comprising a fluid flow directing needle, the needle having a relief cut to control fluid flow into the separator. A supercritical fluid pump is described having a piston assembly with a hydraulic cylinder and a cylindrical integral check valve piston with at least two circumferential seals to seal the piston against the barrel insert and a check assembly extending axially through one end of the integral check valve piston and between the at least two circumferential seals to relieve excess pressure.

Abstract: A booster unit and method increase the performance of an air source heat pump system at low ambient air temperatures, the air source heat pump system including a conduit system for forwarding a refrigerant through an external circuit exposed to ambient air. A tubular system is immersed in a liquid heat exchange medium, such as water or antifreeze, within a booster chamber having chamber walls exposure to ambient air. An internal circuit of the tubular system receives refrigerant from the conduit system for advancement through the tubular system and delivery back to the conduit system so that heat passing from ambient air through the chamber walls and into the liquid heat exchange medium in the booster chamber is transferred from the liquid heat exchange medium to the refrigerant in the tubular system, to increase the temperature of the refrigerant being delivered from the tubular system and forwarded to the external circuit, thereby reducing or eliminating frosting at the external circuit.

Abstract: An aerosol actuator has a main body member, a nozzle member defining an outlet opening, and a selector member. The outlet opening defines a fluid flow direction. The selector member is moved to obtain different fluid spray patterns. The selector member is distal to the nozzle member and the fluid flow direction.

Abstract: A medical valve having a valve inside housing and a valve core. The valve core is installed within the housing. The housing is preferably an integrally-formed hollow cylindrical structure. An annular protrusion may be arranged on the outer surface of the housing and a seal ring may be arranged in the center of the inner wall of the housing. The valve core can be made of an elastic material as an integrally-formed cylindrical structure. A lock ring matched with the seal ring of the housing may be arranged on the outer surface of the valve core, and the lock ring can be integrally formed with the valve core. The medical valve inside disclosed by the invention is widely applied to the medical fields such as cushion mask, trachea cannula and laryngeal mask, No metal member is preferably employed, so with magnetic resonance imaging examination without causing interference.

Abstract: A valve system that includes (i) first and second longitudinally facing members defining a gap therebetween in fluid communication with transversely offset first and second orifices through the members, (ii) a primary biasing means longitudinally biasing the members away from one another, (iii) an elastic element positioned within the gap between the first and second orifices, and (iv) a repositioning means for longitudinally repositioning one of the members towards the other member against the bias of the primary biasing means for adjusting the longitudinal height of the gap. The members can be repositioned between (a) a first position wherein the elastic element does not seal the gap so as to allow fluid flow from the first orifice to the second orifice through the gap, and (b) a second position wherein the elastic element is compressed between the members and seals the gap so as to prevent fluid flow from the first orifice to the second orifice through the gap.

Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.

Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.

Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.

Abstract: A check valve and method for manufacture of the check valve. The check valve comprises a substrate and a channel in the substrate. The channel has an anchor region, a channel corridor and a valve seat region. There is an elastomeric valve mechanism in the channel. The valve mechanism has an anchor portion anchored in the anchor region, an elastomeric web portion in the channel corridor and a valve plug in the valve seat region. The elastomeric web portion interconnects the anchor portion and the valve plug. The elastomeric web portion is in a stretched state such that the valve plug is forced by the elastomeric web portion against the valve seat region to seal the valve seat region. The force of the elastomeric web portion can be overcome by operative fluid pressure within the channel to separate the valve plug from the valve seat region and thereby open the channel at the valve seat region to allow the fluid to exit the channel via the valve seat region.

Abstract: A check valve includes a valve body having an inlet end through which air enters the valve and a valve cavity extending through the valve body and leading to an outlet end. A valve assembly is located at a position that enables control of the flow of air through the valve cavity. The valve assembly includes a tapered section having a cross section that increases in diameter in a direction that is downstream from the inlet end of the valve and which may be included as part of a plug. An elastomeric seal is mounted around the tapered section to reciprocate on the tapered section, with the tapered section biasing the elastomeric seal to a normal position at which the seal comes into sealing contact with both the valve body and tapered section to prevent the downstream flow of air from the inlet end out the outlet end.

Abstract: A check valve is for use in a fluid system. A valve body has an inlet end, a valve cavity, and an outlet end. A valve enables a valve assembly to control the flow of fluid therethrough. A plug of the valve assembly includes tapered and non-tapered sections, the tapered section having a cross section that increases in diameter in a direction that is downstream from the inlet end of the valve body. A sealing ring is mounted to reciprocate on the non-tapered section and an elastomeric actuation ring is mounted along the tapered section. The tapered section biases the actuation ring to a normal position, at which the actuation ring contacts and positions the sealing ring in contact with the valve body and the valve assembly to prevent fluid from flowing out the outlet end of the valve body.

Abstract: A device comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. The plug is positioned within the housing to occlude a port hole in the housing. The housing is positioned within a container so the port hole faces a wall of the container. A hole is created in the container above the port hole. To evacuate or inject air into the container, a hose adaptor with a specialized hose tip is connected to a vacuum or air hose. When inserted into the port hole, the hose tip temporarily displaces the plug from the port hole. Vents within the housing allow air to move through the housing and into or out of the hose tip. Removal of the hose tip allows the plug to resume position over the porthole to maintain the vacuum or air pressure within the container.

Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.

Abstract: A spigot for a beverage container includes a body having a passage with first and second ends formed therethrough. An annular shoulder extends into the passage proximate the first end thereof and an annular valve seat is formed proximate the second end. An elastomeric plunger positioned in the passage includes a button with a sealing flange seated against the annular shoulder and a valve head biased against the valve seat. The body further includes a plurality of fins extending radially into the passage, each fin has a first end adjacent the annular shoulder such that the first ends contact the sealing flange as the button is depressed. The fins act to inhibit the sealing flange from coming unseated from the shoulder.

Abstract: A soap dispenser system includes a venturi suction tube having a soap supply bore intersecting the main through bore; a soap dispenser controlling dispensing of soap from a container; and a supply tube connecting the soap dispenser to the soap supply bore of the suction tube; the soap dispenser including an inner tube having fluidly connected with the supply tube, an outer tube movably mounted over the inner tube and connected with the container, the outer tube fluidly connected with soap from the container and adapted to be fluidly connected with the inlet of the inner tube, a spring applying pressure between the inner tube and the outer tube in a direction to move them apart, a valve permitting soap to enter the inlet of the inner tube only when the outer tube is moved toward the inner tube against the force of the biasing device.

Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.

Abstract: A canister purge valve for regulating fuel vapor flow between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The canister purge valve includes a body having a wall defining a passage extending between a first port and a second port. The first port is adapted for fuel vapor communication with the fuel vapor collection canister. The second port is adapted for fuel vapor communication with the intake manifold of the internal combustion engine. An elastomeric actuator is at least partially disposed in the passage, and includes a first end, a second end spaced from the first end along a central axis, and a sealing surface between the first end and the second end. The sealing surface has a first diameter at a first portion and a second diameter at a second portion, the second diameter being wider than the first diameter.

Abstract: A system for flowing fuel vapor through a canister purge valve includes a valve body having a wall that defines a passage between a first port and a second port. The first port may be adapted for fuel vapor communication with a fuel vapor collection canister, and the second port may be adapted for fuel vapor communication with an intake manifold of an internal combustion engine. The system includes an elastomeric member having a first end, a second end, and an active zone between the first end and the second end. The active zone forms a flow entry portion, a sealing portion, and a flow exit portion. The elastomeric member is deformable between a first configuration that prohibits flow over the sealing portion, and a second configuration that permits flow over the sealing portion. The system includes a stator proximate the passage, an electromagnetic coil surrounding the passage, and an armature coupled to the elastomeric member.

Abstract: A magnetic pumping system includes a pump, capable of urging a fluid therefrom during a forward stroke and a return stroke, having a piston disposed within a cylinder defined by a pump body, and a driver disposed external to the pump body. The driver is capable of moving the piston by a magnetic field interaction between the driver and the piston. The system further includes a check valve bridge, spaced away from the pump and in fluid communication with the cylinder, capable of allowing ingress and egress of the fluid into and out of the cylinder in response to a movement by the piston.

Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.

Abstract: A check valve arrangement utilizes a disc (15) for a valve member while eliminating the need for a ball. A valve seat in the common sense is unnecessary, too. Instead, a substantially flat surface (13) interacts with the disc (15). In order to allow unidirectional flow only, the disc (15) is biased toward the surface (13) by means of an elastic bias ring (17) which itself is held in place by a retainer (6) extending through the center hole (16) of the disc (15) and thereby axially guiding the disc (15). If desired, the flat surface (13) can be supplemented with an embedded sealing ring 18 to provide optimum sealing properties without precise machining of the surface (13). By designing the disc (15) and the retainer (6) in rotational symmetry, a directional adjustment of the parts is made unnecessary.

Abstract: An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common control shaft. A valve assembly is arranged with a manifold to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly, an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.

Abstract: An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common control shaft. A valve assembly is arranged with a manifold to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly, an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.

Abstract: A device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber.

Abstract: Medical intravenous administration connectors according to a first embodiment include a first coupling member having a female luer, a valve member having a substantially rigid stem and a substantially resilient body with a sealing surface, and a second coupling member having a fluid coupling extending from one end and an internal valve member support. The coupling members are structured to couple to each other with the valve member being biased to a closed position. When assembled, the valve stem extends into the female luer, and the valve body biases the sealing surface against an annular ring in the first coupling member thereby blocking fluid communication. Vanes are provided in the second coupling member on which the resilient body of the valve sits, with the vanes acting as a centering mechanism for the valve. The valve is opened for fluid flow through the assembly by coupling a male luer to the female luer of the assembly.

Abstract: A hydraulic valve for controlling the flow of a pressured liquid with a housing that has an inlet and an outlet with a pivotally mounted handle that actuated a valve stem member housed within an internal bore with a counter bore step surface. An O-ring member is mounted on the step surface that comes in contact with a convex surface provided in a peripheral flange member on the stem member. A compressible cylindrical member is trapped partially within an opening at one end of the valve stem member urging the convex surface against the O-ring thus blocking the flow of the pressurized liquid through the internal valve bore.

Abstract: A connector adapted to facilitate medicinal access into an intravenous tube includes a housing having a base and a cap defining a channel through the housing. A valve element disposed in the channel includes a plug and elastomeric shaft which biases the plug into sealing engagement with the housing. Operation of the connector by inserting a male Luer fitting in the housing axially compresses the valve element to a canted position thereby permitting medicinal access through the channel and into the intravenous tube. Canting of the valve element can be facilitated by providing a finger along the channel or by providing a predetermined buckling section along the valve element. The shaft of the valve element can be rounded and disposed in an arcuate cavity of the housing to further facilitate canting of the valve element.

Abstract: The pressure-relief valve (10) has a valve member (18), which interacts with a valve seat (17). The valve member (18) is forced with a certain pretensioning against the valve seat, which pretensioning is applied by way of a diaphragm (21), either directly by this or by virtue of an additional spring means. Whenever a predefined maximum pressure is exceeded, the diaphragm (21) comes to bear against a stop face (26). Due to the free guidance of the valve member (18) tight, contamination-sensitive gaps are avoided. Although the pressure-relief valve is compact, secure bearing contact of the valve member against the seat is nevertheless ensured (FIG. 1).

Abstract: A Luer-activated valve constructed of a single-piece valve element with integral biasing base and ventilated riser disposed within a valve housing providing a valve seat and buttress for the biasing base.

Abstract: A compression spring is formed of elastic material in a shape resembling a trumpet horn. Novel valve structures incorporate the trumpet horn spring as a component, the latter of which serves therein to make the valve self restoring and also to provide a fluid seal. One valve is principally applied to dispense pressurized fluid and the other is a simple gravity fed beverage tap.

Abstract: A check valve having a reduced or zero pressure drop and more particularly such a valve in combination with a spray nozzle. The check valve includes a sealed gas chamber which has within it a closed-cell foam element which insures that some gas remains in the chamber even if the primary seal fails. The new valve/nozzle combination allows valve operating pressure to be set very close to nozzle operation pressure which allows the nozzle to achieve full spray more quickly at start-up and a more immediate cessation of flow at shut off.

Abstract: The invention comprises a reusable closure for temporarily sealing a container to prevent escape of liquid and gas from the container with the closure having a molded, one-piece housing having internal threads for securing the housing to a container and a spout for discharging materials therefrom and an integral tapered sealing ring to prevent materials from escaping from the housing with the housing including a frusto-conical seat for engaging a valve stem with flared skirt for temporarily sealing liquid and gas within the container and a resilient push top, located on top of the housing for finger access by the user with the valve stem connected to the underside of the push top, valve stem axially displaceable to permit sealing and resealing of the skirt against the frusto-conical seat in the housing and the resilient push top providing a restoring force to return the valve stem and skirt to a closed condition where the fluid pressures within the container coact with the skirt to prevent escape of liquids o

Abstract: A micropump comprises a housing for defining a pump chamber, an inlet valve disposed in an inlet flow passage, a outlet valve disposed in a outlet flow passage, and an actuator for changing a volume of the pump chamber. The actuator is formed of a thermo-responsive polymer gel material. Fluid is supplied and fed by heating and cooling the actuator.A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator, for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.

Abstract: A stretch valve which achieves precise control of fluid flow rates through the use of a cylindrical elastomeric valve element. This elastomer element is installed within the cylindrical flow path of a valve body. The flow path has a diameter that is slightly smaller than that of the elastomer element, which is therefore constrained within the flow path. Longitudinal stretching of the elastomer element causes the diameter of the elastomer element to decrease. As a result, a flow path is opened. The further the elastomer element is stretched, the larger is the fluid path that is created. Therefore, precise control of the fluid flow rate is made possible.

Abstract: A pressure capsule for a spray can includes a housing with a chamber disposed therein and a valve mounted within a wall of the housing, the valve is capable of being moved into an open and a closed position such that the valve is moved into the closed position when (1) the pressure capsule is placed in an atmospheric environment and (2) the pressure capsule is placed in a spray can and subjected to a pressure equal to or greater than the operating pressure of the spray can.

Abstract: An apparatus is disclosed for an improved one-way valve comprising a base for mounting in a chamber with a valve surface engaging with a sealing surface to close an input aperture of the chamber. A flexible web is interposed between the base and the valve surface for resiliently biasing the valve surface into engagement with the sealing surface thereby closing the input aperture. When a fluid pressure from the input aperture exceeds the resilient bias of the flexible web, the valve surface is displaced from the sealing surface for opening the input aperture to permit the flow of the liquid from the input aperture through the chamber into an output aperture. Upon a sufficient fluid pressure within the chamber, the valve surface engages with the sealing surface for closing the input aperture to inhibit the flow of fluid from the chamber into the input aperture.

Abstract: A reliable, contamination-resistant, single-use, disposable, medical, non-ventilating, aspirating device and method. The device releasibly connects to and aligns with an indwelling endotracheal tube to accommodate advancing of an aspirating catheter tube of the device by manual manipulation through a sterile, flexible envelope and selective evacuation of lung secretions through a closed and sterile two-position, normally-closed, manually-operable valve at the proximal end of the device, while simultaneously accommodating voluntarily respiration by the patient.

Abstract: A combined and integral pump and check valve combination is disclosed herein for the control of fluid flow through a fluid pump portion having an inlet port leading to a gland cavity occupied by a movable sealing element yieldably held in position closing or sealing the inlet port by a self-biasing member such as an open-cell foam material. A retaining ring used during the assembly procedure is disposed between the edge marginal regions of the self-biasing member and the movable sealing element which may function to stabilize the element. A sealed retaining plate is attached to the pump supporting the self-biasing member and the movable element combination and further defines an outlet port or duct on the side of the movable element opposite to its side which is adjacent to the inlet port.

Abstract: A check valve comprises a valve body and a plurality of blades--all made of plastics and integral with one another. The blades extend straight in the axial direction of the valve body. The blades undergo elastic deformation when pushed onto a tapered inner surface of a stopper at their free ends, thereby biasing the valve body onto a valve seat.

Abstract: Apparatus including a manifold and improved check valves for selectively injecting supplemental fluids into a closed IV line extending from a source of saline solution to a patient during an operation. Also disclosed are a plurality of connected manifolds and a device to secure the apparatus in location for easy administration of the supplemental fluids to the IV line.

Abstract: A high flow vacuum check valve incorporates a plurality of rubber dampening feet located on the sealing bead side of the valve poppet. The feet extend axially slightly beyond the sealing surface of the sealing bead so as to have an axial compression interference, the feet first engaging the valve seat as the valve poppet moves from its open position toward its closed position, and then compressing as the valve poppet continues its movement until the valve is fully closed with the sealing bead in full sealing engagement with the valve seat. This interference compression causes the feet to perform as rate changing springs so long as they are compressed to any extent, dampening axial movements of the valve poppet, and also act as stabilizing members on the valve poppet in the lateral plane. The feet may also be constructed with tiers which also contribute to the stability of the valve poppet.

Abstract: A carburetor including a valve apparatus comprising a wall defining a chamber having an axis and having therein an inlet communicating with the chamber and an outlet communicable with the chamber and having a valve seat, a valve member having two opposite ends and a variable length in the direction of the axis which decreases only when at least a predetermined force is applied to the valve member in the direction of the axis, the wall supporting the valve member and being threaded so as to allow movement of the valve member along the axis and into and out of sealing engagement with the valve seat, the wall having a step extending into the chamber and engageable with the valve member, the step limiting the movement of one end of the valve member towards the valve seat.

Abstract: The baby bottle according to the invention has identically threaded openings in each end to accept interchangeable screw-on fixtures. One fixture contains a nipple and the second fixture contains a spring-loaded valve. The valve includes a central channel connected to air channels for supplying air to the base of the bottle. The valve is recessed into the bottle to avoid inadvertent opening or breakage when the valve is dropped.

Abstract: A charging valve consisting of a valve sleeve and a valve stem fixed in the interior thereof comprises a valve which acts by compression and tension, the tension or compression being exerted by resilient parts of the valve stem adjacent to both valves.

Abstract: A valve assembly (10) for controlling high pressure gas with low controlling gas pressures. The assembly includes a valve housing (12) having a cavity (22), an inlet port (26) and two outlet ports (28, 30). Mounted within the housing in communication with each outlet port are tubular members (38), each having a closed end (38.3) and an aperture (42) in a smooth cylindrical sidewall (38.2). A wobble bar (50) within the cavity is associated with a rubber-like sheet of material (54), which sheet has two sealing portions (56.2, 56.4) draped over the apertures. A very soft sponge-like resilient block (56) normally holds the sealing portions against the apertures to cause the apertures to be sealed. Actuating structure causes the wobble bar to be moved from a normal position to an operative position, an end of the wobble bar bearing down upon another portion of the rubber-like sheet of material to cause an adjacent sealing portion to peel away from the aperture to permit flow through the aperture.

Abstract: A package (10) for dispensing a fluid (26) in the package under gas pressure has a biaxially oriented polyethelene terepthalate bottle (12) with a neck (14). A dispensing head (22) is attached to the neck (14). A normally closed valve (16) is mounted in the neck and has a housing (50) sealed to the inside surface of the neck (14). The housing (50) has a syphon flange (54). An integral structure (56) having a spring (58) at one end and a poppet (60) at a second end rests on the syphon flange (54). The housing has an opening (48) above the syphon flange 54). The integral structure (56) extends between the syphon flange (54) and the opening (48). The integral structure (56) is dimensioned so that the spring (58) is compressed to bias the poppet end of the integral structure (56) into sealing engagment around the opening (48). The dispensing head (22) has an integral diaphragm (42) and rods (52) and (46) extending above and below the diaphragm (42).

Abstract: A fluid dispensing valve mechanism including a valve body member having an annular seat portion which is contacted by the bushing portion of the shaft-bushing member to effect a seal. The shaft is interposed between the bushing and a contact point on a tower assembly, the latter held in fixed relationship to the valve body. The shaft, at least, is made from elastomeric material; and it is bowed off the axis between the center of the annular seat portion and the contact point on the tower assembly, when in position. This results in a positive seal between the bushing member and the annular seat. When the bushing member is displaced axially to dispense the fluid, the shaft member bows even further. The hysteresis effect inherent in the elastomeric shaft returns the bushing member to its contact position with the annular seat.

Abstract: A check valve is disclosed having a preset cracking pressure. The check valve comprises a valve element reciprocatably positioned within a valve body, both the valve body and the valve element including valve seats which seal together when the valve element is urged forwardly within the valve body. A plug is positioned within the rear of the valve body to constantly urge the valve element forwardly thereby defining a cracking pressure necessary to unseat the valve seats allowing the flow of fluid through the valve body.