Abstract:
A container with pressure device for maintaining a substantially constant, pre-set pressure in the container, which is arranged for dispensing a fluid. The pressure control device comprises a first chamber for containing a pressure fluid, in particular a pressure gas, a second chamber in which, at least during use, a control pressure prevails, and a third chamber which is formed by or is in communication with, at any rate is at least partly included in an inner space of the container. A control means is movable by a displaceable or deformable part of the wall of the second chamber and is arranged for at least partly displacing the closing member when the pressure in the third chamber is lower than the control pressure, such that the pressure fluid can flow under pressure from the first chamber to the third chamber.
Abstract:
A device for storing and dispensing carbonated beverages such as beer is provided. The device has a fluid compartment and a propellant compartment which are connected through a pressure control means. The pressure control means delivers propellant from the propellant compartment to the fluid compartment as the beverage is withdrawn therefrom to maintain a desired excess equilibrium pressure of the propellant in the headspace of the fluid compartment. For carbonated beverages, the propellant is preferably relatively pure CO2, and also ensures proper carbonation to the beverage. A method of dispensing a carbonated beverage is also provided.
Abstract:
An aerosol product comprising a double-chamber container separated by a movable partition capable of dividing contents therewith, one spatial portion thereof being loaded with contents to be discharged and the other spatial portion being loaded with compressed gas for pressurizing. The compressed gas is a mixed compressed gas of at least two types of mixed gas, at least a part of the partition presents permeability of the compressed gas, and the mixed compressed gas selectively permeates the partition to be dissolved in the contents to be ready for discharge.
Abstract:
An apparatus for applying spray texture to a wall or the like. The apparatus comprises an aerosol can containing pressurized spray texture material. The spray texture material is released from the can by a valve and passes through a nozzle passageway, out of a discharge opening, and on to a surface to be textured. The apparatus further comprises a flexible member that is aligned with the nozzle passageway that allows the effective cross-sectional area of the discharge opening to be varied. This flexible member defines a central bore that defines the cross-sectional area of the discharge opening, and deforming the flexible member changes this cross-sectional area. A mounting assembly is provided that mounts the flexible member onto the actuator member in a manner that aligns the central bore with the nozzle passageway and allows the deformation of the flexible member.
Abstract:
Art apparatus for applying spray texture to a wall or the like. The apparatus comprises an aerosol can containing pressurized spray texture material. The spray texture material is released from the can by a valve and passes through a nozzle passageway, out of a discharge opening, and on to a surface to be textured. The apparatus further comprises an outlet member that can be placed over the discharge opening to vary the effective cross-sectional area thereof. This outlet member can be in the form of a straw or tube that is inserted into the nozzle passageway or a disc or other member having a plurality of outlet orifices formed therein. The outlet member having a plurality of outlet orifices can be attached directly to an actuator member in which the dispensing passageway is formed. By rotating, sliding, or otherwise moving the outlet member relative to the actuator member, any one of the outlet orifices in the outlet member can be arranged at the end of the nozzle passageway to vary the effective cross-sectional area of the discharge opening.
Abstract:
Pressure capsule for spray can, characterized by the fact that it principally consists of at least two chambers (2, 3), the first of which (2) is intended to be filled with fluid under relatively high pressure and the second of which (3) is intended to be filled with a fluid up to a pressure equal or practically equal to the overpressure which normally exists in a spray can (19) and which is needed for expelling a liquid (18); in the wall of the second chamber (3), a membrane (5) that can control the valve (4); and a removable element (6) that, in its unremoved condition, keeps the valve (4) closed.
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:
The present invention provides pressurized dispensers comprising a container provided with a valve-controlled outlet and containing a concentrate and a reservoir holding propellant. The reservoir comprises a crystalline organic polymer which is capable of holding propellant therein in such a way that the vapor pressure over the held propellant is reduced below that over the pure propellant, the polymer being capable of holding at least 15% of its own weight of propellant at room temperature, and the reservoir being capable of releasing propellant within the container as the contents of the container are dispensed.