Abstract: A system for dispensing a cryogen such as liquid nitrogen. The system employs two vessels containing the liquid cryogen. One serves as a pressure vessel and the other as a storage vessel. Liquid from the pressure vessel is vaporized in a ballast chamber exposed to ambient temperature, resulting in pressurized refrigerant gas. A valve selectively admits the pressurized gas into the liquid storage vessel, causing the stored liquid to be dispensed at a selected site.

Abstract: The invention pertains to a perforating and sealing device for carbon dioxide capsules and suchlike, it comprises a capsule support; in this support is a bore for an axially movable piston, for the purpose of capping the collar of the capsule; the piston is provided with an axial passage; a perforating element extends partially into that passage and is movable toward the capsule until the latter is perforated, the piston being then firmly pressed against the capsule by the gas pressure in the bore.

Abstract: A fluid substance sprayer for spraying substances, such as liquids, paste, etc., includes a container for the substance with a lifting tube extending downwardly into the lowermost portion of the container and terminating at its upper end in a discharge fitting which includes a valve for closing off the lifting tube and opening it under the control of an actuator for the discharge of the substance out through a conduit terminating in a nozzle discharge. A filling tube is also provided on the interior of the container and it connects to a filling valve. A propelling gas, such as air, may be charged into the container through the valve to the top of the container above the substance level.

Abstract: A foam spray for beauty treatment comprising a spray main body having a mount for attaching a container containing a beauty treatment solution, a gas cylinder mounted in the spray main body, a gas flow regulator including a knob member for operating a valve on the gas cylinder, and a gas flow regulator sliding member coupled to the knob member. The gas flow regulator regulates the flow of gas into the container to adjust the rate of generation of the foam to be applied.

Abstract: A combined charging and product dispensing unit is provided for reception in the mouth of a container in sealed relation with the unit, including a valve body having a container of liquid gas carried thereby. The valve body is provided with a valve assembly for manually controlling the flow of gas under pressure out through the valve body into the container to pressurize the interior of the container. The unit also includes a discharge tube which is connected to a discharge nozzle carried by an actuator for the valve unit.

Abstract: Apparatus for dispensing a carbonated beverage including a source of propellant gas, a reservoir for beverage to be dispensed, one or more dispensing valves connected to the reservoir, a propellant gas conduit for applying a first gaseous propellant pressure upon beverage supply vessels and for applying a second and lesser gaseous propellant pressure upon beverage in the reservoir, a beverage supply conduit for transferring beverage from a supply vessel to this reservoir and normally closed valves in the beverage supply and gas conduits, which valves are controllable by a level sensor in the reservoir; the apparatus also features structure for automatically switching from one supply vessel to another as vessels become emptied; a method of dispensing includes the steps of providing a supply of carbonated beverage, applying a first propellant pressure upon the supply, selectively transferring beverage from the supply to a reservoir, applying a second and lesser propellant pressure upon the reservoir and dispens

Abstract: Apparatus for pumping a flowable material from a tank disposed on an engine-powered vehicle is the subject of the present invention. The invention is particularly adapted for use with a multiple compartment tank on a petroleum delivery truck. An air pump, which may be the air pump for operating the air brakes of the vehicle, is powered by the vehicle engine and pumps air into a surge tank where the air is held under pressure. A conduit leads from the surge tank to a manifold that is coupled with each of the compartments of the material storage tank. Each of the compartments is coupled with the common manifold through appropriate spur conduits. Appropriate pressure regulator means maintains the pressure on the surge tank and valve means is operable to pass the air under pressure from the surge tank to one or more of the compartments thereby pumping the material from the storage tank.

Abstract: An automatically controlled liquid dispensing system including a reagent dispenser adapted to function as an intermediate container for dispensing relatively small controlled volumes of liquid to an associated receiving system in a continuous "demand" mode, this dispenser being indirectly monitored to be automatically and continually replenished after liquid is withdrawn therefrom, using a simple photoelectric liquid level monitor system including a fail-safe overflow control arrangement.

Abstract: A pressurized container-dispenser characterized by a separate pressure source chamber containing a gas-adsorbent solid and an adsorbable gas and having means to transmit source chamber pressure to a product chamber for dispensing of a product therefrom. Preferred transmission means include a moveable wall separating the product and source chambers, a check valve, a constant pressure valve, and a membrane of the type allowing passage of gas but resisting passage of non-gaseous fluid. In a preferred embodiment the source chamber is defined by an enclosure of substantially fixed volume secured adjacent the product chamber. In another, the source chamber is defined by an unsupported enclosure free within the product chamber.

Abstract: An arrangement for the controlled delivery of liquid reagent is shown wherein a reservoir vessel for storing the liquid in volume is coupled to replenish a "vestibule vessel" provided for intermediate storage of the liquid enroute to the delivery point and for pneumatic propulsion thereof, the liquid being pneumatically driven from reservoir to the vestibule through a unidirectional check valve.

Abstract: A spray dispenser including a hollow casing, having sockets in each of which a pair of O-ring seals is mounted. A ball valve is urged toward one of the O-ring seals of each socket. A housing is removably mounted in the casing. Hollow lugs on the housing each having a cylindrical outer face are received inside O-ring seals in sealing relation therewith. Each lug unseats the associated ball valve. When the housing is removed, the ball valve seats against one O-ring seal when the housing is removed from the casing while the lug is in sealing engagement with the other O-ring seal. Compressed air and liquid under pressure are directed through the sockets to a dispensing valve member on the housing, and the pressure need not be released when the housing is removed.

Abstract: A method of and device for dispensing liquids from sealed containers such as wine bottles is disclosed, and for replacing the dispensed liquids with an innoxious gas at a preselected pressure to prevent spoilage of undispensed portions of the liquid.

Abstract: This invention relates to pressurized dispensers such as aerosol containers. The invention provides such dispensers containing a reservoir of an organic substance which dissolves at least 15% of its own weight of propellant at room temperature, the reservoir being capable of releasing the dissolved propellant on dispensing the contents of the container. The organic substance is an extended rubber. Various organic substances can be used to extend the rubber, and various rubbers can be extended. The extenders are generally less expensive than the unextended rubbers, and the extended rubbers can often dissolve as much, or in some cases more propellant than the same weight of unextended rubber. This provides a cost advantage over unextended rubbers. The reservoirs enable the head-space pressure in the dispenser to be maintained substantially constant throughout dispenser life, and foams, for example, of substantially constant density to be obtained.

Abstract: This invention relates to an aerosol dispensing device for dispensing a substance free from liquified propellant. The device comprises a main compartment provided with a dispensing valve which contains the substance together with pressurized propellant vapor for effecting dispensation, and a reservoir compartment containing liquified propellant and pressurized propellant vapor. A communicating valve is provided between the reservoir compartment and the main compartment. The valve is adapted to open and allow propellant vapor to pass from the reservoir compartment to the main compartment. In a preferred arrangement the valve opens when dispensation to the atmosphere of the substance in the main compartment causes the pressure of the propellant vapor in that compartment to fall below the pressure of the propellant vapor in the reservoir by a predetermined amount.

Abstract: A spraying apparatus is charged with pesticide, and optionally also pressurized, by the attachment and puncture of a pressurized container of agrochemical.

Abstract: A pressurized dispensing device contains a fluid product, either a dry powder or a liquid, to be dispensed and a reservoir containing a propellant sorbed by a sorbent material, the reservoir having a vapor-permeable wall to permit propellant gas to pass through and pressurize the headspace of the device.

Abstract: Apparatus and method for the application of a hot-melt resin adhesive wherein an enclosed chamber having a restricted discharge orifice is provided with a valve element for opening and closing said orifice; a non-oxidizing gas is introduced into the chamber at super-atmospheric pressure with a charge of resin adhesive, and heat is applied uniformly to the chamber to cause the adhesive to attain a viscous, flowable condition. The gas under super-atmospheric pressure forces a portion of the flowable resin through the orifice when the valve element is in open position.

Abstract: A manually portable spray tank includes a plug-like adapter mounted in the filler opening or mouth of the tank to receive and hold a pressurized can or canister containing a liquid propellant. The adapter includes a depending, elongated heat exchanger tube or trap which is closed at its lower end and which extends almost to the bottom of the tank for direct heat exchange contact with the liquid contained in the tank. Liquid propellant under pressure flows from the supply can into the heat exchanger tube or trap where it is vaporized by heat from the spray liquid in the tank. The vaporized propellant then passes under relatively high pressure outwardly through a comparatively small opening in the upper end of the heat exchanger tube into the ullage of the tank to pressurize the column of spray liquid in the tank and thereby insure its forcible discharge from the outlet of the spray tank.