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 beverage dispenser having replaceable dispensing components allows beverage-contacting elements to be removed and replaced. A needle or other conduit arrangement may be adapted for replacement, and the needle may be adapted to be inserted through a cork or other closure of a beverage container. A dispensing outlet may also be replaceable, allowing all beverage-contacting components to be replaced. The needle or other conduit may be engagable with a dispenser body by inserting a distal end of the needle into and through an opening in the body. A dispensing outlet may secure the needle to the body in an operation that fluidly connects the dispensing outlet to the needle.

Adsorbent materials adsorb large quantities of inert permanent gases and maintain the initial pressure inside aerosol packages throughout the useful life of the packages, thus acting as propellants.

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 7 0 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 comprises a method and apparatus for delivery of a product, such as whipped cream, from a pressurized container containing a deformable bladder, the deformable bladder separating a main compartment of the pressurized container into a pressure reserve zone and a pressurized delivery zone, where a membrane in the pressure reserve zone initially separates first chemical reagents from second chemical reagents. Upon a force creating an opening in the membrane, a reaction of the chemical reagents forms a gas, which alters a volume of the deformable bladder and the volume of the pressurized delivery zone with a corresponding increase in pressure of a deliverable gas in the pressure delivery zone. A resulting increased pressure of the deliverable gas, which permeates cream, maintains quality of delivered whipped cream from the pressurized container.

A canister for a metered dose inhaler has high and low pressure chambers for a propellant and for an inhalable drug and vaporised propellant. The low pressure chamber has an opening for a metering valve. A pressure regulating valve is between the high and low pressure chambers and provides a flow path from them. A metering valve dispenses a metered dose. The valve includes a metering valve body having a propellant metering chamber with a propellant inlet and a product metering chamber with a product inlet, and a metering valve stem with a dispensing nozzle, a propellant inlet plug and a product inlet plug. The metering valve stem moves to a dispensing position. In the dispensing position, the propellant and product metering chambers are in fluid communication with atmosphere via the dispensing nozzle of the metering valve stem such that a metered dose of product and propellant can be dispensed.

A 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 a pressure control device having a valve and mounted on the 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. A piston with a protruding stem is provided in a guide member, whereas between the guide member and the piston a chamber with a gas with a reference pressure smaller than the high pressure is enclosed, and the high pressure vessel is closed by a closure with a central bore of smaller diameter than the diameter of the stem, and the piston end remote from the protruding stem is pressurized by the fluid in the fluid dispensing container.

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.

An aerosol canister for dispensing a product and propellant, and a product metering valve for use with the aerosol canister. The canister includes a high pressure chamber for containing a liquefied or compressed gas propellant, a low pressure chamber for containing a gas propellant, and a product reservoir for containing a gas propellant. A pressure regulating valve is interposed between the high pressure chamber and the low pressure chamber, the pressure regulating valve adapted to provide a fluid flow path from the high pressure chamber to the low pressure chamber when the pressure in the low pressure chamber drops below a predetermined pressure. The canister further includes a partition wall interposed between the low pressure chamber and the product reservoir.

A device for discharging fluids includes a container, to be opened and closed, which forms an interior space of the device for accommodating a spray medium; a capsule connector means in order to establish a fluidic connection between an exchangeable capsule filled with gas and the device; a discharge opening through which the spray medium can be discharged from the device interior space upon actuating the device. A pressure regulator is provided in order to guarantee the discharge of the spray medium, for example, in the form of hot chocolate, at a uniform pressure.