A portable apparatus for dispensing and foaming of a product, including: a product container which contains a product that is to be foamed by and dispensed from the apparatus; a gas container, at least containing a gas, for example a single gas or a gas mixture, wherein the gas substantially does not contain any greenhouse gases such as N20; a dispersion device, having a product entrance that is connectable to the product container for receiving product, the dispersion device further being connectable to the gas container for supplying the gas to the product during product discharge; a processing device downstream of the dispersion device for performing a mixing treatment and/or pressure reduction on the product provided with the gas; and a product dispensing head, being part of a top section of the apparatus and being arranged downstream of the processing device.

A pressure control device for pressure packaging based on a disc with fluid connection and a collecting basin, with associated stopper. The closing mechanism in the pressure control device is no longer based on a cylinder with a central opening in the separation wall and closing-off of the opening by means of a piston with stem. The proposal is extremely simple, compact and easy to assemble.

A portable apparatus for dispensing and foaming of a product, including: a product container which contains a product that is to be foamed by and dispensed from the apparatus; a gas container, at least containing a gas, for example a single gas or a gas mixture, wherein the gas substantially does not contain any greenhouse gases such as N.sub.2O; a dispersion device, having a product entrance that is connectable to the product container for receiving product, the dispersion device further being connectable to the gas container for supplying the gas to the product during product discharge; a processing device downstream of the dispersion device for performing a mixing treatment and/or pressure reduction on the product provided with the gas; and a product dispensing head, being part of a top section of the apparatus and being arranged downstream of the processing device.

A container whose content can be removed easily by a consumer. The container should be inexpensive to produce while being extremely easy to operate by the consumer, should provide a high degree of flexibility with respect to the choice of the propellant gas (pressure and type of gas) and should achieve a long storage life for the contents, even after the container has been tapped. The container comprises a fill chamber (40), a pressure chamber (6) and a pressure valve (10). The fill chamber (40) is formed by a container base (2), a container wall (7) and a container upper face (8), and a first pressure (p.sub.B) prevails in the fill chamber (40). The pressure chamber (6) is formed by the container base (2) and a pressure chamber base (5) and a second pressure (p.sub.D) prevails in the pressure chamber (6). The pressure valve (10) is connected to the container base (2) and the pressure chamber base (5). The pressure valve (10), when open, establishes fluid communication between the fill chamber (40) and the pressure chamber (6), and the pressure valve (10), when closed, separates the fill chamber (40) and the pressure chamber (6) in a fluid-tight manner from one another.

A spray dispensing device including a first chamber defined by a container, a bladder contained within the first chamber that houses a fluid composition (e.g., a bleach composition), and an actuator in fluid communication with the first chamber so as to allow dispensing of the fluid composition from the bladder when the actuator is actuated (e.g., pressed). A pressurized composition may be contained within a second chamber, which acts as a pressure control device. The pressure of the pressurized composition may be in a range of from about 70 psi to about 150 psi. An outlet valve may provide selective fluid communication between the pressure control device (i.e., the second chamber) and the first chamber.

The invention relates to a dispenser container for pressurized fluids, comprising: a metal shell forming at least part of an outer wall of the container, which metal shell at least partly encloses an internal container volume, a partition wall separating internal container volume into a high-pressure chamber and a low-pressure chamber, and a valve mounted into the partition wall in a substantially fluid-tight manner, which valve is configured for a controlled release of fluid from the high-pressure chamber to the low-pressure chamber, wherein the partition wall is at a sealing zone sealed to the metal shell in a substantially fluid-tight manner, and wherein the metal shell delimits at least a part of the high pressure chamber. The invention further relates to a dispenser comprising such a dispenser container and a method for manufacturing such a dispenser container.

A substance dispensing system including a first pressure vessel defining a first interior space; a first substance positioned in the first interior space; a first portion of a first propellant positioned in the first interior space; and a first portion of a second propellant positioned in the first interior space. At least 90 percent by weight of the first propellant is at least one of carbon dioxide, nitrous oxide, and combinations thereof. At least 90 percent by weight of the second propellant is at least one of nitrogen, argon, helium, oxygen, and combinations thereof.

A method for releasing residual pressurized fluid from an aerosol canister, said method comprising the manual opening of a vent assembly (614) for said canister (600), the vent assembly (614) comprising first (615) and second (616) members and a receiving part (617), the receiving part (617) having an outer surface configured to form a fluid seal against an edge of a hole in the canister (600), and an internal volume having a longitudinal axis, the second member (616) disposed within the internal volume of the receiving part (617) and configured for linear translation along the longitudinal axis relative to the receiving part (617), the first member (615) rotatably engaged with the second member (616), rotation of the first member (615) relative to the second member (616) configured to impart translation of the second member (616) along the longitudinal axis such that, in a first position, the second member (616) forms a fluid seal against the receiving part (617) and, in a second position, a fluid passage is formed between the second member (616) and an inner surface of the receiving part (617).

A novel pressure control system provided for maintaining a constant predetermined excess pressure in a fluid dispensing container comprises a high-pressure plastic vessel having an inner chamber and an upper open end, and a pressure control device with a valve, which pressure control device is mounted on the upper open end of the high-pressure vessel, whereas a passageway is provided from the inner chamber to the outside, which is controlled by the valve, wherein the vessel is substantially cylindrical.

The upper part of the vessel has a spherical dome with a cylindrical insert provided for receiving the pressure control device and the lower end of the vessel has an open end, which is closed by a ring-shaped closure.

A novel foam dispenser is described, which comprises a dispensing container, a valve with a downstream foaming chamber and a pressure control device for maintaining a constant pressure in the container, such that uniform and compact foam will be created.