Abstract: Gas is generated at a controlled rate from a liquid and solid phase combination that generated gas upon contact, by using diffusive transport of the liquid toward the solid phase surface to prolong the rate of gas generation, with a variety of alternatives for controlling the rate of diffusive transport. This system is useful in infusion devices for delivering medications or other beneficial liquids from a retaining pouch at controlled rates over a prolonged period of time.

Abstract: A spray can, particularly for paints and paint preparation materials, is pressurized with a propellant, particularly propellant gas, as a result of which the paint material can be sprayed when a valve is opened. In order to substantially increase the paint output amount per unit time so that a greater layer thickness is achieved in the same working time, the propellant provided in the spray generates a pressure of 4.5 to 6 bar, the output amount of the paint material is 15 g to 35 g per 10 seconds for uninterrupted flow, and that the paint is output in the form of broad-stream atomization.

Abstract: A rotary union for dispensing of a single central supply of water-based can sealing compound to an orbiting can end lining station includes a rotating reservoir (1) inside a stationary housing (2) with a dip tube (3) carried by the housing extending down below the liquid level of the reservoir. A sensor (4) in the ceiling of the housing determines the liquid level for controlling the admission of the compound through the down tube in response to the level sensed. The seal (7), where the stationary and rotating parts interface, is below the reservoir and simply needs to support gas pressure but does not come into contact with the compound.

Abstract: A method for producing a fast drying high solids adhesive and the adhesive composition are described herein whereby a water based polymer emulsion known as latex is modified with unemulsified plasticizing oils and reinforcing-tackifying resins, and a stable final emulsion of polymer, oil and resin is achieved without the use of additional emulsifiers or volatile organic solvents. The method takes advantage of the inherent solubility of the oils and resins in the polymer and of the emulsion-stabilizing effects of the selected resins, and the resultant product has excellent adhesive characteristics such as fast drying, improved water resistance, improved freeze resistance, high bond strength and no volatile organic compounds.

Abstract: A housing of length and cross-sectional dimension to enclose a given amount of tire sealing fluid is selected, coupled with a flexible hose at its output port with a pneumatic tire valve, and charged at its input port from a source of compressed air to inject the tire sealing fluid within the housing by means of the hose through the pneumatic valve to protect a tire against later blowouts or puncturing in use. In a preferred embodiment, the housing is constructed of a polyvinylchloride tube, while the hose is constructed of a clear vinyl composition.

Abstract: This present invention relates to a soda bottle cap having a shell with a spout and a flexible top, and a seal that has an opening through which liquid can flow out when the flexible top is pressed down. With the structure of this soda bottle cap it is possible to release the carbonated liquid from the soda bottle using the high pressure of CO.sub.2 gas inside. When the flexible top is pressed down, the seal changes shape and does not block inner hole (6) so that the liquid in the bottle can be pushed out through the tube(12), and then through the center hole(9) of the seal, and then through channels (10) of the seal, and then through the inner hole (6) of the shell, and then through the spout (4) by the inner hole (6) of the shell, and then through the spout (40 by the high pressure of CO gas in the bottle. When the force on the flexible top (7) is released after use, the flexible top and the seal go back to its original shape.

Abstract: The present invention provides a preparation and application device useful for mixing and dispensing a plurality of fluids, wherein the fluids must be mixed immediately prior to use. In one embodiment, the device includes two fluid delivery systems connected to a manifold having two separate fluid channels. Each fluid channel conducts fluid to a mixing chamber, from which, following mixing, the mixture of fluids is dispensed. The manifold additionally includes a gas channel having an outlet connected to one of the fluid channels, which can be used to supply a pressurized gas to the mixing chamber to expel the mixture from the chamber, reducing the likelihood that the mixture can clog the device. The invention also provides a method for preparing and dispensing a mixture of two fluids.

Abstract: A dispensing gun for fluent products such as viscous adhesives and sealants. The gun includes a removably mounted nozzle and fittings for attachment to a product source such as a can or a hose. A valve body has product inlet and outlet passages with flow being controlled therethrough by a valve that includes a nose portion seated in the valve body, and a rod that extends through the nose portion of the valve and seats on tapered surfaces inside the end of the nozzle. The valve contains a shrouded internal spring biasing the valve to a closed position. A trigger engages the yoke carrying the valve and the valving rod and moves the yoke so that the rod and valve move between open, closed and intermediate positions. In one preferred form, the valving rod may be adjusted between positions wherein more or less product is dispensed in response to full trigger movement.

Abstract: A mounting cup having a plastic film or laminate provided on the top outwardly facing surface thereof, at least adjacent the pedestal portion of the mounting cup, for mating with a skirt of a spray button to provide a sufficient seal between those two components during charging of a pressurized container with a propellant. The perimeter dimension of the skirt is preferably sized to be slightly smaller than the perimeter dimension of the pedestal portion of the mounting cup so that the skirt is slightly expanded upon engagement with the mounting cup. Due to this arrangement, the skirt at least partially bites into the plastic laminate, provided on the top surface of the mounting cup, to provide the sufficient seal between those two components.

Abstract: The invention relates to apparatus for simultaneously dispensing a plurality of measured quantities of a liquid, the apparatus comprising:a slide-valve body, a succession of liquid accumulation chambers, respective expulsion gas feed channels associated with said chambers, a selector member movable in said housing between a filling position and a dispensing position, and sealing structure placed in said housing between the slide-valve body and the selector member. When the selector member is in the filling position, liquid flows through the various chambers in succession, and when the selector member is in the dispensing position, the liquid contained within each chamber can flow out under the action of said expulsion gas.

Abstract: A photoresist supplying system for used in a semiconductor fabrication, the system includes a photoresist holder for storing photoresist. A first gas supplier is connected to the photoresist holder for providing gas to the photoresist holder to force the photoresist out of the photoresist holder. A buffer is connected to the photoresist holder via an input terminal to exhaust the gas, the photoresist is output by an output terminal of the buffer. A first valve is connected to the output terminal of the buffer for controlling the flowing rate of the photoresist. A second valve is connected to the buffer to drain the gas collected by the space. A pumping apparatus is connected to the first valve via an input terminal to suck the photoresist. A filter is connected to the pumping apparatus to filter out the impurity in the photoresist. A vibrator is set in the photoresist supplying system to hold the filter for eliminating bubble.

Abstract: Defects, associated with the presence of microbubbles in the photoresist developer solution, have been largely eliminated by providing an apparatus and method whereby the photoresist developer solution, while on standby status in a buffer tank, is maintained at a negative pressure (about minus 0.5 kg/cm.sup.2). This allows any microbubbles, that were introduced into the solution during the course of conveying it to the buffer, to escape. The negative pressure in the buffer during its refill and standby stages is generated by adding a venturi valve to the existing equipment. This keeps the impact on the control software to a minimum and has little or no effect on the cost of the process.

Abstract: A water gun (10) is provided having a pressure tank (19) in fluid communication with a coupler (20) adapted to be received upon a conventional water faucet, and a pump (42) for conveying additional air to the pressure tank. The flow of water from the water faucet draws ambient air which is compressed within the pressure tank to pressurize the water therein. The pressurized liquid is released through a nozzle (21) coupled to the pressure tank by actuation of a trigger (17).

Abstract: A bicycle storage frame for storing fluids includes a hollow fluid-tight frame section having a wall structure and an internal fluid chamber and at least one liquid fill opening formed in the wall structure accessing the internal fluid chamber of the frame section. At least one gas fill valve extends through the wall structure to access the internal fluid chamber for inputting of pressurized gas into the frame section and at least one liquid release valve extends through the wall structure accessing the internal fluid chamber for release of liquid held within the frame section. At least one gas release valve extends through the wall structure accessing the internal fluid chamber for releasing pressurized gas from within the frame structure and a gas transfer device such as an air chuck is connected to the gas release valve externally of the frame section for transferring gas from within the internal fluid chamber to a tire for inflation thereof.

Abstract: An apparatus for dispensing beverages including a fluid conduit terminating in a conduit exit, the conduit exit being oriented upwardly when the apparatus is in an operative position, and a dispenser head defining an enclosure surrounding the conduit exit, the dispenser head having a pouring aperture opening onto the enclosure. The pressure within the fluid conduit is regulated so that beverage traveling upwardly toward the conduit exit experiences a stagnation point, causing the beverage to pour from the pouring aperture of the enclosure due to gravity.

Abstract: A device for delivering an aerosol, comprising: a casing member, a valve stem, and a diaphragm. The diaphragm is made of an ethylene-propylene-diene rubber ("EPDM") and is stable to dimensional change when exposed to 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoroethane.

Abstract: A photoresist spraying apparatus for coating a photoresist with pressure from a nitrogen gas includes a tank which has a photoresist holding portion and an air portion. A photoresist inflow conduit is connected to a sidewall of the tank to intake photoresist and a photoresist outflow conduit is connected to a bottom of the tank for discharging photoresist. A T-shaped gas conduit has a gas inlet, a gas outlet and a connecting portion therebetween for connecting to the tank. The flow of a gas from the gas inlet to the gas outlet lowers the air pressure inside the tank so that air and bubbles remaining inside the tank are discharged to the gas outlet via the connecting portion, while a photoresist flows into the tank via the photoresist inflow conduit. A valve, provided in the gas outlet of the gas conduit, opens and closes to fill and discharge photoresist in the tank according to the pressure inside the tank.

Abstract: An apparatus for dispensing a fluid at a predetermined flow rate by metering a metering liquid. The apparatus including a deformable liner adapted to hold the fluid and a tank having an inner surface defining a tank interior. The tank is adapted to support the deformable liner substantially within the tank interior. The apparatus also includes a metering pump operably connected to the tank and adapted to transfer a metering liquid between the deformable liner and the inner surface of the tank such that the deformable liner will be deformed so as to force the fluid from the tank at a predetermined flow rate as determined by metering the flow rate of the metering liquid through the metering pump.

Abstract: A simple, inexpensive apparatus for dispensing powdered or granulated material includes a container, a tight-fitting, removable container top, and a conventional blower, such as a leaf blower. The intake of the blower is connected to a container outlet tube. The two described embodiments include arrangements of air inlet orifices, air inlet tubes, and air control doors to control the concentration of the air/material mixture discharged from the blower discharge nozzle.

Abstract: Forming a propellant mixture in a barrier-type fluent material dispensing can, wherein the mixture includes propellants of different volatilities and different evaporation rates so that the mixed propellant will have a lower equilibrium pressure at higher temperature than would be the equilibrium pressure of the original mixture before the more rapid evaporation of the one propellant.

Abstract: The invention relates to methods, compositions and apparatuses, such as squirt guns and of the water emitting devices, that eject a flow of aqueous fluid having visible bioluminescence, providing "glow-in-the dark" emissions. The devices contain a population of a mechanical stress-stimulatable bioluminescent organisms, such as Pyrocystis species such as lunula and fusiformis, in suspension in a fluid. The fluid luminesces when ejected from an aperture of the device. The devices may also include a fluid flow generator, such as a mechanical pump, capable of inducing the flow of the fluid through the flow path and a trigger or valve capable of activating said fluid flow generator. In addition, the invention provides containers for viably storing populations of the bioluminescent organisms, methods and media for culturing and diluting the organisms, and kits of an emitter, a storage apparatus, suitable bioluminescent organisms, and culture media.

Abstract: A device to empty fluid from a sealed pressure container by use of pressurized air, and thereafter to place the container under vacuum. The device has a sleeve portion which defines an interior chamber. A ring portion with a hole extends into the interior chamber and forms a seating surface. A slidable seat with an aperture is located in the interior chamber below the ring portion and is sized to loosely fit in the interior chamber and seat on the ring portion. An upper cap with an air channel is located at the upper end of the sleeve and a lower cap with an air channel is placed at the lower end of the sleeve portion. A spring placed in the interior chamber between the lower cap and the slidable seat biases the slidable seat into contact with the ring portion. A floatable ball is placed above the slidable seat and is adapted to fluid tightly seat on and seal off its aperture. The floatable ball is sized to freely pass through the hole in the ring portion. A vacuum generator is also provided.

Abstract: The present invention relates to a system which enables a person to cool a particular portion of their body. The cooling is achieved through the use of a canister of compressed air which is dispensed over the portions of the user's body to be cooled. Portability of the canister is afforded through the use of a resilient belt clip. Furthermore, a directional cone is secured adjacent the dispensing end to enable a more accurate placement of the cooling air.

Abstract: A dispensing gun for fluent products such as viscous adhesives and sealants. The gun includes a removably mounted nozzle and fittings for attachment to a product source such as a can or a hose. A valve body has product inlet and outlet passages with flow being controlled therethrough by a valve that includes a nose portion seated in the valve body, and a rod that extends through the nose portion of the valve and seats on tapered surfaces inside the end of the nozzle. The valve contains a shrouded internal spring biasing the valve to a closed position. A trigger engages the yoke carrying the valve and the valving rod and moves the yoke so that the rod and valve move between open, closed and intermediate positions. In one preferred form, the valving rod may be adjusted between positions wherein more or less product is dispensed in response to full trigger movement.

Abstract: A method for dispensing or depositing particulate material includes accumulating particulate material in a nozzle having an opening at the bottom for discharging the particulate material, and applying positive air pressure to a buffer chamber positioned in communication with the accumulation of particulate material to start and control the flow of particulate material through the opening and applying negative pressure to the buffer chamber to stop the flow of particulate material. An unobstructed interface can exist between a surface of the particulate material and air in the buffer chamber. In one embodiment, roofing shingle granules are applied intermittently to a moving coated asphaltic sheet through a slot to form strip roofing shingles.

Abstract: The present invention relates to chemical reactants, compositions, methods to manufacture reactants, and apparatus for the generation of a gas pressure to drive a fluid from an infusion pump at controlled flow rates.

Abstract: The invention relates to a dispensing valve for emptying pressurized fluid from a container. A clamping device or pinching projections open and close a passage through a flexible dispensing tube. Various types of lever and cap arrangements are employed to actuate the pinching or clamping structures. A seal around the dispensing tube prevents the fluid from escaping through the cap of the container.

Abstract: A sprayed liquid dispensing apparatus which comprises a container consisting of high-strength synthetic resin, the container having a bottom wall, an upright side wall, and an upper neck; the side wall including upper and lower wall portions having threaded interconnection, whereby the upper wall portion is rotatably removable from the lower wall portion to allow liquid to be filled into the lower portion, after which the upper portion is rotatably connectible to the lower portion to provide a sealed interconnection therewith; a pressurized gas inlet fitting carried by the upper wall portion proximate the neck, the fitting including a check valve, whereby pressurized gas can be filled into the container, for pressurizing the liquid therein; and a manually manipulable discharge valve carried proximate the top of the container, above the neck and via which sprayed liquid is dispensed; the side wall and bottom wall having sufficient thickness as to be rigid and to contain fluid pressure up to at least about 200

Abstract: To remove gas bubbles from a viscous liquid (L) to be dispensed, the liquid (L) is introduced with a first pressure in a thin, broad jet into a sealed chamber (15) which is partially filled with the liquid (L), with the result that the gas bubbles can escape from the introduced liquid. A second pressure, which is lower than the first pressure, prevails in the chamber (15), with the result that gas bubbles present in the liquid expand and burst. The difference between the first pressure, with which the liquid is introduced into the chamber (15), and the second pressure, prevailing in the chamber (15), is constant.

Abstract: A viscous material delivery and management system for delivery of a particular viscous material to a viscous material utilizing destination. The system has a sealed container for containment of a particular viscous material, a source of inert gas in gaseous communication with the sealed container, and a viscous material conduit in communication with the sealed container for delivery of the particular viscous material. The inert gas provides the motive force to move the particular viscous fluid from the sealed container to the viscous material utilizing destination.

Abstract: A standby sanding unit for emergency sanding of icy roadways has a plurality of sand hoppers that are connected to a tank holding air under pressure. The hoppers have hopper type bottoms that have nozzles attached to the bottoms so that when air under pressure is provided to the upper portions of the tank, sand will be discharged out through the nozzles. The air pressure tank has valves that control the flow of air under pressure to the hoppers, when needed.

Abstract: A method of handling defogging agents used in operating rooms. A defogging solution or agent is sterile filtered into an aerosol container that is ergonomically sized to fit the hand of the user. The solution is then capped with a sterile inert gas such as nitrogen as a propellant. The aerosol container is then placed in a pouch and sealed about its periphery. The sealed pouch is then sterilized by gamma radiation. Sterile wipes can also be included in the sterile pouch if desired so that they will be readily available to wipe foreign matter from instruments, masks, glasses and the like, prior to applying the defogging agent. In the operating room, the sterile pouch is opened and discarded and the sterile defogging agent is sprayed on sterile instruments, masks, glasses and other articles to prevent condensation from forming on surfaces due to temperature differential.

Abstract: A bulk container of pressure dispensable product receives a supply of gas from a plurality of containers arranged in operative series and, optionally, nested. Gas pressure is supplied by mixing at least two components of a multiple component gas generating chemical system, in which the containers in series initially house alternating ones of the gas generating chemicals. Delivery tubes connect the containers, define the series, and supply chemical from one container to the next to generate gas and regulate pressure. Pressure generation is initiated by adding the appropriate chemical or pressurized gas to at least one container, such as the container operatively furthest from the bulk container.

Abstract: A cap for a bottle containing a carbonated beverage provides a dispensing mechanism that prevents carbonation gas from escaping from the bottle as the beverage is being dispensed. The cap has a housing with a first end adapted to mate with a neck of the bottle and an opening out of which beverage to be dispensed flows. A valve is mounted in the housing having a first end coupled in fluid communication with the bottle when the cap is on the bottle and a second end coupled in fluid communication to an outlet in the housing. A manually operated actuator is coupled to the valve for opening and closing the valve.

Abstract: An acoustic ceiling patch or textured material in the form of a sprayable composition including a base, a filler and a binder as well as a propellant or carrier storable and dispensable from a pressurized dispenser having a delivery nozzle and a removable dispensing tube. An aerosol system with a spray nozzle is included on the container for selective discharge of the textured material onto a prepared patch area which may be on a drywall or support panel so as to match and blend with the surrounding acoustic ceiling surface area in order to provide a continuous and unbroken coextensive surface texture of mechanically and visually matched material. A distribution straw is included for selectively conducting the textured material in a desired direction while holding the dispenser upright.

Abstract: A liquid dispensing valve including a flexible length of tubing. The tubing is bent along two parallel lines transverse to the axis of the tubing. The tubing is held in an actuator which, in a first position folds the tubing along the two parallel lines to close the tubing to the passage of fluid. In a second position the tubing is partially straightened whereby fluid can pass through the tubing.

Abstract: An acoustic ceiling patch or textured material in the form of a sprayable composition including a base, a filler and a binder as well as a propellant or carrier storable and dispensable from a pressurized dispenser having a delivery nozzle and a removable dispensing tube. An aerosol system with a spray nozzle is included on the container for selective discharge of the textured material onto a prepared patch area which may be on a drywall or support panel so as to match and blend with the surrounding acoustic ceiling surface area in order to provide a continuous and unbroken coextensive surface texture of mechanically and visually matched material. A distribution straw is included for selectively conducting the textured material in a desired direction while holding the dispenser upright.

Abstract: A device for delivering an aerosol, comprising: a casing member, a valve stem, and a diaphragm. The diaphragm contains a blend of (a) 100 parts by weight of a polyolefin random copolymer of about 80 to about 95 mole percent ethylene and a total of about 5 to about 20 mole percent of 1-butene, and (b) at least 10 parts by weight of a rubber comprising a styrene-ethylene/butylene-styrene block copolymer based on 100 parts by weight of polyolefin. The styrene-ethylene/butylene-styrene block copolymer is substantially uniformly dispersed within the polyolefin. The blend preferably has a Shore A hardness of 65 to 85.

Abstract: A device and method for unloading frozen or congealed crude oil, oil product, or chemical cargo from a railway or highway tank car. A brief heating step uses the high thermal conductivity of metal tank walls, and the low thermal conductivity of oil or chemical cargos, to thaw a relatively thin band of cargo adjacent to the longitudinal tank wall. This thin band of thawed liquid lubricates the remainder of the plug, which remains solid, so that the plug can be mechanically ejected into a receiving trough positioned at the same height as the emerging plug; this avoids the requirement of completely thawing the frozen cargo before it can be pumped out. A tank car is disclosed having at least one end wall that can be opened, allowing a frozen or congealed mass to be physically ejected from the tank as a solidified plug.

Abstract: A beverage vending system for successively outputting beverages into cups. The beverage vending system includes a vending machine having a currency output device and automatically outputs a beverage into a cup in response to an operator's payment and selection of a beverage. The vending machine including a plurality of disposable containers of beverage syrup, such as bag-in-box packages, stored in an auxiliary cabinet. The disposable containers interconnected to the vending machine by a dispensing system. The dispensing system functioning to draw syrup from the disposable containers and selectively dispense a predefined or selected amount of syrup through an output nozzle and into an awaiting cup. The dispensing system includes a first pumping stage having a first pump for drawing the syrup from the disposable packages through a supply conduit and then pumping the syrup downstream through a feed conduit towards the output nozzle.

Abstract: An aerosol spray texture apparatus to dispense a spray texture material having particulate matter therein against a ceiling or other surface. There is a container having a spray texture material in the lower portion thereof, and inert compressed gas in the upper part of the container. A dispensing valve at the top of the container is depressed to cause the spray texture material to travel upwardly through a dispensing tube and from the valve onto the ceiling surface.

Abstract: In order to form an extemporaneous mixture of two components (S, A) isolated from each other, the first component (S) is placed in a can (1) in which a resupply capsule (5) under relatively high pressure is disposed, a valve (12) being provided and controlled depending on the value of the ambient pressure relative to a reference pressure.

Abstract: A fluid sampling device for use in obtaining a precise volume of fluid to be sampled from a sealed vessel equipped with a hydraulic fitting to which the fluid sampling device is connectable. The device has a fluid sampling float chamber with an internally sealable top opening which opens into a bottom end of an air channel and a bottom opening which opens into a top end of a fluid channel. A floating ball is located in said fluid sampling float chamber and is sized to be sealingly sealable at the top opening. A vacuum generating means relying on air flow through a venturi to draw air out of the fluid sampling chamber through the air channel is located above the top opening of the float chamber. An air valve is located downstream of the venturi for controlling the direction of air flow though the venturi. A hydraulic coupler is located at a bottom end of the fluid channel which when connected to the hydraulic fitting on the sealed vessel opens, but when disconnected from the fitting closes.

Abstract: A metering device for aerosol containers which is attached to an aerosol container and which controls the amount of aerosol material which is dispensed by the aerosol container. Aerosol material is received into a reservoir which is remotely located from the aerosol container. A metered actuator dispenses a predetermined amount or dose of aerosol material.

Abstract: An applicator for eradicating or removing transparent or translucent emphasizing inks, particularly from a paper surface, wherein the emphasizing ink has been used over permanent ink or a printed surface to emphasize such surface or a writing thereon. The applicator comprises a container, a liquid bleaching or oxidizing agent in the container for the emphasizing ink and means on one end of the container, such as a felt tip, roller, pressurized spray nozzle or hand pump, to apply a thin film of the ink removing agent to the emphasizing ink and to effect the eradication or removal thereof without substantially affecting the underlying ink or printed material which has been emphasized. In another embodiment of the invention, a dispenser of a neutralizing agent is also provided to abate the effects of excess bleaching or neutralizing agents on the surface being treated.

Abstract: A disposable apparatus to dispense an amount of liquid from a closed container such as a stoppered blood collection tube. The apparatus comprises a stopper piercing means to access the interior of a closed blood collection tube; a gas passage means to allow a metered amount of gas to be forced into the blood collection tube; and, a liquid passage means to allow fluid to be dispensed from the tube in proportion to the amount of gas forced into the tube. Also disclosed is a machine which uses a disposable apparatus to dispense liquid from a sequence of closed blood collection tubes in an automated manner. Liquid contained within a blood collection tube is dispensed from the tube by a control means according to signals indicative of the amount of liquid within the tube and the amount of liquid that is desired to be dispensed. A manually operated machine that uses the disposable apparatus to dispense a sample of liquid from a closed blood collection tube is also described.

Abstract: Carbonated and non-carbonated beverages are selectively dispensed under the driving force of a one time charge of pressurized inert gas inserted into the headspace of the beverage container at the time of bottling/canning. The gas, preferably nitrogen, is inert to the beverage liquid and is pressurized sufficiently to permit dispensing of all of the liquid from the container via a siphon tube. A cap valve seals the container and includes an elastomeric check valve preventing escape of gas while permitting the siphon tube to be inserted into the container. A throttling and diffusing valve controls outflow from the siphon tube to ambient and prevents fracturing of gas from the beverage liquid to minimize foaming/frothing.

Abstract: A toy water gun includes a molded plastic handle having a hose coupling thread at one end and a bottle thread coupling at the other end. A trigger and a nozzle are formed in the handle with the trigger displacing a ball from its seat to form a water jet. A check valve includes a ball that is held against its seat in the hose thread coupling end of the handle by pressure in a water reservoir. A siphon tube is used in one version for reaching to the bottom of a plastic bottle reservoir that is screwed into the bottle thread coupling of the handle. An adapter may be screwed into the bottle thread coupling of the handle and coupled to one or more plastic bottle reservoirs that are carried in a backpack. The water gun is charged with pressurized water from a household water spigot by screwing it to the spigot and forcing water under pressure into the reservoir. A two piece handle version is also disclosed.

Abstract: A product dispenser include a unique product bag/valve configuration. The product is stored in the product bag. Pressure in the container surrounding the bag determines the dispensing pressure. The valve has a valve extender with a unique shape to enhance sealing the valve to the bag. The product bag includes a gusset along a bottom portion. The gusset opens when product is introduced into the bag. The gusset supports the bag when in contact with a bottom dome shaped portion of the container.

Abstract: A low pressure aerosol dispensing can which is distinguished from existing high pressure aerosol dispensing cans. The generally cylindrical can has a thin wall thickness, like that of a carbonated beverage can, which can be distorted by finger pressure but whose shape is maintained by internal gas pressure. The liquid contents to be dispensed and the propellant gas are mixed in the can. The dispensing valve at the top of the can dispenses the liquid contents and propellant in a controlled manner. The valve may include an additional narrow bore vapor tap between the gaseous propellant head space in the can and the valve chamber for delivering extra gas for atomizing the liquid and propelling it from the nozzle. The gas pressure in the can is coordinated with the can wall and bottom thickness so that the can will have sufficient distortion resistance and burst resistance at elevated temperature.