Abstract: A pharmaceutical aerosol spray for treating an angina attack including a container having a liquid composition therein comprising 0.1 to 2 weight percent of nitroglycerin, 2 to 60 weight percent of ethanol, 2 to 60 weight percent of propylene glycol, 10 to 50 weight percent of dichlorodifluoromethane and 30 to 70 weight percent of dichlorotetrafluoroethane, the container having a valve assembly sealed to the container around an opening in the container by a sealant material which has a nitroglycerin absorption value less than 10 mg/1 g of sealant material.

Abstract: A cleaning apparatus for cleaning with a mixture of various chemicals. The cleaning apparatus includes a compressor for compressing and transferring a solution medium, at least one jet pipe, one end of which is connected to the compressor and the other end of which is open, and a plurality of suction pipes, connected to the jet pipe at a specified interval, respectively. The apparatus further includes a plurality of chemical tanks with an open end of the suction pipe being inserted into each of the chemical tanks, respectively. The invention permits a number of objects to be cleaned sequentially without being contaminated by making use of the principal of aspiration. In addition, the compressor is used only to pass the solution medium therethrough inside of the compressor and is never corroded by the mixture of chemicals.

Abstract: A new apparatus for supplying discreet amounts of glue to sheets of paper positioned beneath glue heads is presented. The new glue nozzle consists of an essentially vertical chamber into which air pressure is introduced perpendicularly to the vertical alignment of the chamber. A glue needle is inserted down the center of the vertical chamber. Glue is supplied through the glue needle in droplets by applying pressure to the glue bottle. As a glue droplet accumulates at the bottom of the glue supply needle, a pulse of air is sent into the glue chamber and pushes the droplet off of the glue needle and onto the target. As the next sheet is moved into place underneath the glue needle, another droplet accumulates. When the droplet and sheet are aligned, a pulse of air blasts the droplet off the end of the needle onto the next sheet.

Abstract: A pressurized dispenser is disclosed herein having a container housing a quantity of acoustic ceiling patch or textured material mixed with base, filler and a binder as well as with a carrier such as aerosol. A manual pump or spray nozzle is included on the container for selective discharge of the patch or textured material onto a prepared area which is a drywall or support sheet so as to match and blend in with the surrounding acoustic ceiling surface area to provide continuous and unbroken coextensive surface texture of mechanically and visually matched material.

Abstract: This Invention relates to aerosol paint and coating compositions comprising non-aqueous dispersions.

Abstract: A trigger (18), containing one component (28) of a two component gas generating system and having a headspace (37), is closed by a pressure rupturable membrane (36) and located in an expandable pouch (10), in a reservoir of the other component (19) of the gas generating system, with the membrane (36) facing down. The pouch (10) is inserted into a dispensing container (44) for flowable product, and the container is sealed. Thereafter, the trigger (18) is activated by externally pressurizing the container by back flow of fluid through a dispensing valve (46), either by adding a gas or by adding flowable product, causing the membrane (36) to rupture and the trigger (18) to discharge its contents into the reservoir of the other gas generating chemical (19).

Abstract: A pressurized solution of a material with a dissolved gas is maintained and dispensed in a system that allows the material can be dispensed as a foam at any location. The system is portable and avoids the need for a large mixing apparatus at the location The system includes a portable container having a movable member defining an expandable chamber. The chamber is filled the material/gas solution from a pressurized source of solution which may be at another location Force is maintained on the movable member to keep the material/gas solution under pressure. The material/gas solution is maintained under pressure in the container to avoid premature foaming of the solution by the maintaining force on the movable member. The force can be provided in various ways, including the use of a predetermined amount of fluid in the container on the other side of the movable member from the chamber or the use of an external source of pressurized fluid.

Abstract: The present invention provides a device and method for propelling liquids to long distances. The invention is especially useful for marking animals such as sheep for identification purposes.

Abstract: A method of mixing drilling fluids at a drill site includes the transportation of sealed silo assemblies that can contain dry products in bulk to the well drilling site. The dry products are maintained within the silo assemblies in a dry and pressurized condition. The dry product is discharged from the sealed silo assemblies and into a mixer at the well drilling site wherein the mixer is maintained in a sealed environment until mixing is completed. The mixer combines the dry product with a liquid at the well site. The dry product is maintained within the silo assemblies in a pressurized condition to discourage the entry of moisture or gasses having high moisture content.

Abstract: The device comprises a container (3) provided in its upper part with an opening (4) fitted with a distribution valve (11), and a flexible pouch (9) disposed in the interior of the said container (3) in order to form a partition between the product (2) to be dispensed and a propellant (14) capable of maintaining a sufficient internal pressure for dispensing the product. The active product (2) to be dispensed is situated in the interior of the flexible pouch (9) and the valve (11) does not have a dip tube. A quantity of propellant (14) is introduced into the volume (10) of the container (3) situated around the flexible pouch (9). The flexible pouch (9) is made of a membrane which is sufficiently permeable to allow for the maintenance of an equilibrium of the gaseous pressure of the propellant (14) between the volume (10) exterior to the pouch (9) and the interior of this pouch (9).

Abstract: A collapsible liquid container is mounted within a pressure chamber, the chamber is pressurized either by an external air pump, or by a manual pump within the wall of the chamber. The pressure inside the chamber causes the wall of the container to collapse as liquid is drawn from it. A check valve mounted in a channel connecting the inside of the pressure chamber to the spout of the container transfers pressurized air into the container when the pressure within the container drops below the pressure in the chamber, in order to evacuate any liquid remaining into the container when the walls have been collapsed to the maximum extent possible.

Abstract: A liquid material dispenser includes a housing formed with a reservoir for the liquid to be dispensed, an outlet through which the liquid is to be dispensed, and a connecting passageway between the reservoir and the outlet. A diaphgram is located in a cavity in the passageway such that one side of the diaphragm defines a pumping chamber, and the other side defines a control chamber. An electrolytic cell generates a gas to the control chamber according to the quantity of electrical current passed through the electrolyte, for driving the diaphragm through forward strokes to pump liquid to the outlet; and a slow-acting vent vents the gas from the control chamber to the atmosphere at a rate lower than that of generation of gas by the electrolytic cell, for driving the diaphragm through return strokes to refill the pumping chamber.

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 keg tap for dispensing a pressurized liquid from a container having a keg closure includes a substantially cylindrical housing which defines a pressure chamber within the housing. An axially movable valve-opening rod is inserted through the housing and pressure chamber and has one end which engages the keg closure. The rod has a continuous liquid passage extending from end to end and connecting at right angles with a liquid canal. A bracket supports the liquid canal and engages the rod so that the bracket and the rod are jointly raised and lowered. The rod extends through an insert in a lower end of the housing, the insert having bores arranged therein for receiving pins on a fork connected to a movable lever. The rod includes upper and lower flanges which define a groove therebetween for engaging another set of pins on the fork. The rod is upwardly and downwardly movable by moving the lever.

Abstract: A vacuum fill system for deaerating flowable materials includes a hollow, cylindrical container connected to a plurality of valves, slide gate valves and a vacuum pump for creating a vacuum when filled with flowable materials that causes the flowable materials to deaerate and subsequently compact when atmospheric pressure is restored.

Abstract: A re-useable aerosol container is disclosed. Such an aerosol container defines an aperture and an inner chamber for containing a fluid. The aerosol container includes an aerosol valve for dispensing fluid contained within the aerosol container. The aerosol container further defines a neck surrounding the aperture and further includes a plug defining a cavity that is removably insertable into the inner chamber via the aperture. The plug includes a collar surrounding its cavity. The plug collar and the aerosol container neck are so relatively dimensioned and adapted as to be removably engageable in a fluid-tight manner when the plug cavity is inserted into the aerosol container inner chamber via the aerosol container aperture. The aerosol container further includes dry chemical formulation ingredients, disposed within the plug cavity. Such dry chemical ingredients, when mixed with water, are able to produce gas, for purposes of pressurizing the fluid container chamber.

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.

Abstract: An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.

Abstract: A pressurized dispenser is disclosed herein having a container housing a quantity of drywall texture material mixed with a binder and a carrier such as aerosol. A manual pump or spray nozzle is included on the container for selective discharge of the drywall texture material onto a prepared patch which is a drywall sheet so as to match and blend in with the surrounding surface area to provide continuous and unbroken coextensive surface texture of mechanically and visually matched material.

Abstract: A tap head for keg fittings having an actuating lever pivotally mounted on a housing and connected to a slide movable in the housing and detent members positively engaging in one another to lock the actuating lever and with one of the detent members directly biased toward the stop position and in which the detent members are formed of plastic and are made up of an elastically self-biasing tongue cooperating with a detent edge with one of the tongue and detent edge formed integrally on the housing and the other of the tongue and detent edge integrally formed on the actuating lever and with connections for gas and liquid connectable via the slide with corresponding passages in the keg fittings.

Abstract: An improved pesticide application utilizes a relatively large replenishment tank to store several working days requirements of pesticide solution at a relatively high pressure head. Both solution and pressure head, portions thereof, are transferred to a portable, working cylinder from the replenishment tank. Because a pressure head is directly transferred from the replenishment tank to the portable cylinder, rather than creating a pressure head within the cylinder solely by the transfer of solution under pressure to the cylinder, the pressure head within the portable cylinder is maintained for a significant working period. The improved pesticide application system requires the handling of concentrated pesticides and water only once every several days, rather than 3 or 4 times a day. No manual hand pumping is required to maintain a pressure head within the portable cylinder.

Abstract: A product dispenser includes 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 pressurized fluid dispensing device for storing and dispensing pressurized fluid, such as water, to athletes during the performance of their particular activity, particularly endurance events such as a bicycle tour, biathlon, triathlon and the like. The pressurized fluid dispensing device may be mounted to the frame of a bicycle between the vertical and diagonal supports above the center bracket or crank assembly to provide as low as possible center of gravity. The device includes a support cage, fluid vessel, tubing and an actuateable valve. The fluid vessel may be pressurized and slidingly inserted into the support cage to supply fluid through the tubing to the valve. A check valve extends from the bottom of the vessel which is sealingly engageable with a recess formed in the bottom of the support cage through which the fluid may flow. The actuateable valve is actuated to dispense fluid by being bitten.

Abstract: A fluid dispenser for use, for example, in an ink jet printing head, comprises a switching device, preferably a bistable fluidic device, which switches fluid under pressure between a path in which the fluid circulates back to the fluid source and a second path in which it issues from a jet. The fluidic device is preferably formed by micro-machining cavities in a silicon substrate, or in two substrates which are then bonded together face to face. A printing head may be formed by locating a number of the dispensers in side-by-side relation with spacers therebetween, the spacers being used to provide feed paths for the ink.

Abstract: An aerosol dispensing device provides increased shelf life for aerosols containing unstable ingredients or reactive compounds. The device includes a container and a valve which, upon actuation of an actuator, has a portion which is depressed downwardly into the container. In some forms of the invention, the downward depression is exerted directly against a glass ampule containing a composition to be isolated from the container contents or valve mechanism. Such depression causes the ampule to break releasing its components where they may mix within the container. In another form of the invention, depression of the actuator causes a relatively heavy ball to be released into the container generally where it may contact and break a frangible liquid containing ampule within the container. The device of the invention provides physical separation of components within the ampule from components generally within the container until the first depression of the acuator.

Abstract: A feeding device comprises an element operable with a feed conveyor for dispersing food to an organism. The element comprises an upper chamber for receiving food and a lower chamber for dispersing food. The upper chamber is connected to the conveyor for receiving food therefrom. The upper chamber is also connected to the lower chamber so that food in the upper chamber can flow into the lower chamber. A valve is mounted for shifting between a filling position for allowing food to flow into the lower chamber, and a dispersing position for allowing dispersion of the food from the lower chamber while preventing food from flowing from the upper chamber to the lower chamber.

Abstract: A method for delivering a predetermined amount of a fluid comprises the steps of pressurizing the fluid, passing it through a pressure feed passageway, opening and closing the pressure feed passageway, and thereby delivering a predetermined amount of the fluid out of the pressure feed passageway. A rotatable shaft is located in the pressure feed passageway. The rotatable shaft is provided with a passageway part, which constitutes part of the pressure feed passageway. The fluid is delivered by rotating the rotatable shaft to a predetermined orientation, in which the passageway part communicates with the pressure feed passageway outside of the passageway part. After a predetermined amount of the fluid has been delivered, the rotatable shaft rotates by a predetermined angle to an orientation, in which the passageway part does not communicate with the pressure feed passageway outside of the passageway part, and the delivery of the fluid is thereby stopped.

Abstract: A syrup dispensing assembly is provided for a soft drink dispenser. This assembly includes a plurality of syrup supply sources in communication with a plurality of syrup pumps. Each of the pumps is interconnected with a common manifold connected at one end to a source of CO.sub.2 gas under pressure, and at the other end by a vacuum pump. Actuation of a valve allows the gas pressure source to pressurize the pumps for dispensing. Closure of that valve and actuation of the vacuum pump allow the pumps to refill with syrup from the syrup supply sources. The system can operate with any of various types of syrup supplies, as well as combinations of such supplies.

Abstract: A dispenser contains a product containing bag and a system for generating a dispensing pressure in a chamber created by the space between the product containing bag and the walls of the dispenser. The act of filling the product bag with product to be dispensed establishes an initial dispensing pressure. A pressure regulator in the chamber re-establishes the dispensing pressure after each spray down. The pressure regulator contains a gas and liquid reactant separated from one another and provided in a ratio approximately the same as that of the space within the dispensing container to that of product contained therein.

Abstract: A process and a discharge valve assembly are provided for regulating the flow of a liquid product from an aerosol container which is pressurized with a permanent gas propellant. The liquid product is conveyed under pressure to a mixing region and the propellant gas is separately conveyed to the mixing region. The mixture is passed through at least one choke restrictor that is located between the mixing region and the discharge nozzle. The mixture expanding downstream of the restrictor forms a foam-like mixture internally of the valve assembly and prior to discharge of the mixture from the exit nozzle.

Abstract: The invention relates to a device (1) for melting and injecting wax for the manufacture of wax parts in broken-mould casting. The device (1) comprises a wax boiler (2) having a wax-injection nozzle. The boiler being provided with a heating device (3) for melting the wax and keeping it molten. The wax boiler (2) is pressure-sealed with a removable lid (5) and has a pressure inlet connected to a pressure source (33). Furthermore, a deaeration valve (13) is provided on the lid. The wax boiler (2) is connected via a wax-replenishing channel (15) to a wax-premelting container and wax reservoir (14) containing a heating device (16). A shut-off valve (17) is provided in the wax-replenishing channel (15).

Abstract: A liquid and gas tank is provided for operation, in particular, in satellites subject to low acceleration, that utilizes a separation force produced by surface tension to collect liquid in a privileged zone of the tank without allowing gas to escape via the privileged zone. The tank includes an outer first shell element having a curvilinear shape, and having at one end a surface portion S of radius of curvature r which is concave on a side that contacts liquid. The tank also includes an inner second shell element fixed to the first element, being convex in shape on a side that contacts liquid, and curvilinear in shape and including a surface portion S' having a part which is slightly inclined relative to the surface portion S in the privileged zone forming a narrowest zone between the surface portions S and S', the surface portion S' having a radius of curvature r' which is less than the radius of curvature r, wherein liquid is urged into the narrowest zone due to a capillary effect.

Abstract: A dispensing unit for mixing and dispensing a beverage which consists of several constituents, including syrup. The unit dispenses beverage from a bottle having a bottom outlet portion and through a syrup path controlled by a manually operable valve. A gas path in the dispensing unit supplies gas into the bottle for urging the syrup from the bottle and into the syrup path. An additional liquid is permitted to flow to a mixing chamber along with the syrup where they are mixed.

Abstract: A beverage dispensing unit for dispensing syrup from a syrup container and mixing the syrup with diluted water and carbonated water is disclosed. The unit includes a body having a syrup flow path, a gas supply path, and a receiving portion for the syrup container. The interior of the syrup container is linked to the gas supply path which supplies carbon dioxide into the interior of the syrup container so as to drive the syrup out of the syrup container and into the syrup flow path. The syrup container is disposed in the receiving portion which includes a first and second hole such that the first hole is linked to the gas supply path and the second hole is linked to the syrup path. A projecting portion is integrally formed with the receiving portion and includes a separating wall which separates the first and second holes so as to prevent the carbon dioxide from flowing directly from the first hole to the second hole.

Abstract: An aerosol container includes a cylindrical container body having an open end, a lid injection-molded from a thermoplastic resin material and sealingly coupled to the container body and defining a mouth opening, and a metal dispensing cap sealingly coupled to the lid and closing the mouth opening. The dispensing cap is provided with a dispensing nozzle for dispensing the contents of the container in aerosol form. The lid itself includes an upper annular mounting bead sealingly coupled to the dispensing cap and having an interior upper surface (that establishes the mouth opening), and an interior lower surface that is radially outwardly disposed relative to the interior upper surface thereof. Important to the present invention, the lid includes at least three gates circumferentially equally spaced-apart relative to one another along the interior lower surface of the mounting bead.

Abstract: A substantially non-aqueous iodine microbicide composition comprising (a) a povidone-iodine in an amount of from 0.0005% to 1.0% by weight based on the total amount of the composition, and (b) a solvent comprising a lower alcohol having from 1 to 3 carbon atoms or a mixture of a lower alcohol having from 1 to 3 carbon atoms and a non-hydrated polyhydric alcohol, and an aerosol-type iodine microbicide composition containing the iodine microbicide composition.

Abstract: A method and apparatus for cleaning cellular contamination in flow cytometer comprising the sequential use of a strong oxidizing solution, particle-free neutral pH fluid and a weak acid.

Abstract: The present invention relates to an aerosol hair spray package having reduced volatile organic compound emission during the useful life of the package. A hair spray composition (3, 25) is packaged in either a self-propelled aersol hair spray package (1) or a pump spray hair spray package (20) containing a low delivery rate discharge means (6,23). The hair spray composition (3, 25) contains a combination of at least two polymers in weight ratios of 99:1 to 1:99 differing in weight average molecular weight by at least 1.5, one of which is required to have a number average molecular weight of at least 100,000. This blend of polymers combines with the low delivery rate discharge means--0.2-0.38 grams per second for the self-propelled hair spray package (1) and 0.06 to 0.012 grams per pump stroke for the pump spray hair spray package (20)--to provide an atomized hair spray composition having a volume mean particle size of 60.+-.12 microns for package (12) and 73.+-.13 microns for package (20).

Abstract: An aerosol diffusion fogger apparatus has an aerosol can containing about 10% by weight light white mineral oil and about 90% by weight of an isobutane and propane propellant mixture and having an aerosol valve with a vapor tap and having a fine aerosol nozzle for producing a fine, evenly dispersed and stable fog having particle sizes less than one micron for use in special effects cinematography and still photography.

Abstract: A unit dose dispenser for dispensing a composition includes a compressible, air filled container in communication with an open end of a tube filled with the composition. The opposite end of the tube through which the composition is dispensed is sealed with a removable closure cap to maintain sterility of the composition prior to use. By removing the cap and applying external pressure to compress the container, air is forced to enter the tube and eject, by displacement, composition from the tube. To completely eject the predetermined dosage that completely fills the tube, the volume of air or other gaseous propellant within the compressible container is greater than the volume of the unit dose.

Abstract: A syphon seltzer package (10) consists of a polyethylene terephthalate (PET) plastic bottle (12) with a neck (16) having an opening (18), into which a valve insert (20) is mounted. The insert (20) is held in place by mechanical attachment. The insert (20) fits into a sleeve (50) in an interference fit. Projections (52) on the outside of wall (32) insure a positive seal between the insert (20) and the sleeve (50). Similar projections (54) on the outside surface (56) of the sleeve (50) provide a positive seal between the sleeve (50) and the neck (16) of the bottle (12). At the bottom of the sleeve (50), there are four projections (58) spaced at 90 degree intervals around the sleeve (50). Castellations (60) are provided around the sleeve (50) between the projections (58). To assemble the package (20), the sleeve is inserted in the neck (16). The insert (20) is then driven into the sleeve (50).

Abstract: A dispenser contains a productivity bag and a system for generating a dispensing pressure in a chamber created by the space between the product bag and the walls of the dispenser. The act of filling the product bag with product establishes an initial dispensing pressure. A pressure regulator in the chamber re-establishes the dispensing pressure after each spray down.

Abstract: A pressurized dispenser is disclosed herein having a container housing, a quantity of drywall texture material mixed with a binder, and a carrier such as aerosol. A manual pump or spray nozzle is included on the container for selective discharge of the drywall texture material onto a prepared patch which is a drywall sheet so as to match and blend in with the surrounding surface area to provide continuous and unbroken coextensive surface texture of mechanically and visually matched material.

Abstract: An apparatus reestablishes an initial dispensing pressure after each spray down or dispensing of product. A hollow member contains a gas and a liquid reactant. The member has a walled portion with a gas permeable opening. At a pressure equilibrium, where the pressure inside the member equals that outside of the member, substantially no gas or liquid passes in or out of the member through the opening. When product is dispensed the pressure outside of the tube decreases. With this pressure differential the gas in the member forces the liquid reactant out of the tube and into the surrounding environment. A second reactant, disposed outside of the member, mixes with the first reactant to regenerate a pressure outside of the tube, thereby reestablishing an initial dispensing pressure.

Abstract: Systems for storing and dispensing gases. The gas storage systems are two-phase gas/solid or gas/liquid, or three-phase gas/liquid/solid, functioning by reversible sorption. In gas storage systems having a solid phase, use is made of a polymeric material, preferably a hydrogel, having microvoids functioning as interstitial stores for gas. Reversible gas sorption in the microporous polymer is improved by treatment with a swelling promoter. The stored gas may be a propellant, and reversible sorption propellant storage may be used in all types of pressure pack dispenser. Cryogenic techniques facilitate preparation of propellant systems with standardized parameters. The invention enables use of safe and environmentally benign gases as propellants.

Abstract: A system for delivering a fluid from a puncture in a pressurized vessel and particularly for delivering an entry retardant into or adjacent a secure space.

Abstract: A dispenser apparatus for accurately and repeatedly dispensing predetermined quantities of a flowable material in a continuous rapid succession. The dispenser apparatus includes a durable valve for controlling the flow of the flowable material, particularly granular flowable material. A ventilation system is also provided for preventing ambient moisture from causing the granular flowable material to absorb moisture and clog the passageways of the dispenser apparatus. The dispenser apparatus can be incorporated into conventional container filling systems that are otherwise limited by the speed with which granular flowable materials can be dispensed.

Abstract: A dispensing apparatus for attaching to the bottleneck of a bottle filled with a carbonated drink. The apparatus includes an adapter ring with angled surfaces for sealing onto the bottleneck and a valve housing attached to the adapter ring. The valve housing having a valve closure member that diverges away from sloping walls of an entry chamber to provide a range of control for flow control, and soft contours at every juncture to minimize turbulence.

Abstract: In a dispensing unit comprising a gas path which is for supplying gas into a bottle to thereby dispense a beverage contained in the bottle, the gas path extends along a substantial U-shape. The gas path is provided with a plurality of check valves therein in series. Each of the check valves is for preventing a counterflow of the beverage in the gas path.

Abstract: An aerosol dispenser having a transparent container for storing a propellant and a first compound under pressure. An actuator button normally closes a valve mounted on top of the container to control the dispensing of the materials from the container. An ampule containing a second material separate from the first material until the ampule is broken is positioned generally along the bottom of the container with a saddle shaped foot. A push rod extends from the valve and holds the foot in engagement with the ampule and breaks the ampule when the valve is first moved to its open position. The materials are mixed within the container and are dispensed through a filter mounted on a dip tube leading to the valve.