A beverage dispenser with a variable pressure regulator cap assembly that includes a high pressure cavity defined by a cap body. The high pressure cavity receives pressurized gas from a compressed gas reservoir. A low pressure cavity is connected to the high pressure cavity via a high pressure gas passageway. The low pressure cavity defines a low pressure gas passageway that penetrates the cap body. A piston seat is positioned on a high pressure cavity side of the high pressure gas passageway. A piston regulates introduction of the pressurized gas into the high pressure gas passageway. A diaphragm is positioned between an ambient pressure cavity and the low pressure cavity and translates the piston relative to the piston seat. A main spring is positioned between a diaphragm and a spring hat. Rotation of the drive screw translates the spring hat to affect compression of the main spring against the diaphragm.

A system and method to supply nitrogen gas is provided. Ambient air is compressed and stored in a storage receiver and then nitrogen is separated from the compressed air in a nitrogen membrane separation unit. The separated nitrogen is stored in a nitrogen storage tank under pressure and released through a pressure control valve. The system is confined to a small footprint and is useful as a nitrogen source where conventional compressed nitrogen tanks are a safety or space issue. Systems to prepare nitrogen infused beverages are also provided.

A system features a controller having a signal processor configured to: receive signaling containing information about a liquid level of a gas infused liquid in a liquid/gas infusion tank/vessel, one or more gas input characteristics of a gas provided to the liquid/gas infusion tank/vessel, and one or more liquid input characteristics of an incoming non-infused liquid provided to the liquid/gas infusion tank/vessel; and determine corresponding signaling containing information to control a pump that provides the incoming non-infused liquid to the infusion tank/vessel on demand each time a beverage is dispensed with the gas infused liquid from the liquid/gas infusion tank/vessel and to maintain a desired liquid level and target equilibrium gas pressure in the liquid/gas infusion tank/vessel at a given temperature.

A pressurized beverage dispenser having a beverage container and a cap. The cap includes a cap body, a compressed-gas cartridge, an external straw, a discharge chamber, a metering valve, a diaphragm, and an actuator. The discharge chamber within the cap body is in fluid communication with an internal passageway of the external straw. The metering valve allows a flow of beverage from the beverage container to the discharge chamber when the metering valve is open and substantially precludes the flow of beverage when the metering valve is closed. The diaphragm opens the metering valve when the diaphragm is activated and closes the metering valve when the diaphragm is deactivated. The diaphragm also activates when a user sucks on the outlet end of the external straw to create suction within the discharge chamber. The actuator on the cap body activates the diaphragm when the user manually engages the actuator.

A fluid pressurization and dispensing system, including a coupler releasably attached to a vessel via an attachment means for securing a vacuum seal between the coupler and the vessel for maintaining pressure within the vessel, refreshing the gas composition within the vessel, and dispensing of a fluid contents externally from within the vessel without disturbing the vacuum seal. The coupler has a rigid single body unit having a tap head, a shank, and a cap which are contiguous thereof the coupler including a plurality of channels each integrally machined within an interior portion of the coupler. The system regulates a flow of gas from a pressurized gas cartridge via a gas pressure regulator, enables venting excess gas via a gas pressure relief valve, enables measurement of gas pressure within the vessel via a gas pressure gauge. Another embodiment of the system includes a coupler including a bi-level tap head.

A system and method to supply nitrogen gas is provided. Ambient air is compressed and stored in a storage receiver and then nitrogen is separated from the compressed air in a nitrogen membrane separation unit. The separated nitrogen is stored in a nitrogen storage tank under pressure and released through a pressure control valve. The system is confined to a small footprint and is useful as a nitrogen source where conventional compressed nitrogen tanks are a safety or space issue. Systems to prepare nitrogen infused beverages are also provided.

The invention relates to a container for a pressurized beverage, in particular beer, comprising a casing of a thermoplastic material, a valve part for dispensing the beverage from the container, and an expandable device holding a compressed gas or a gas generating system for expanding the device during or after filling the container to compensate for an increase in the volume of the container resulting from creep in the thermoplastic material.

A fluid pressurization and dispensing system, including a coupler releasably attached to a vessel via an attachment means for securing a vacuum seal between the coupler and the vessel for maintaining pressure within the vessel, refreshing the gas composition within the vessel, and dispensing of a fluid contents externally from within the vessel without disturbing the vacuum seal. The coupler has a rigid single body unit having a tap head, a shank, and a cap which are contiguous thereof the coupler including a plurality of channels each integrally machined within an interior portion of the coupler. The system regulates a flow of gas from a pressurized gas cartridge via a gas pressure regulator, enables venting excess gas via a gas pressure relief valve, enables measurement of gas pressure within the vessel via a gas pressure gauge. Another embodiment of the system includes a coupler including a bi-level tap head.

A portable apparatus for mixing fluids comprising is provided, and has a housing, inlets for receiving a plurality of fluids at the housing, and a fluid mixer for receiving the fluids from the housing and mixing them. The fluid mixer outputs at least one fluid blend. A fluid blend selector then receives fluids from the inlets and at least one blend from the fluid mixer and outputs a selected fluid, where the selected fluid is one of the fluids from the inlets or one of the at least one fluid blends.

A portable beverage dispensing system is disclosed. The portable beverage dispensing system includes a reservoir container with an internal volume for holding a beverage. The beverage dispensing system also includes a pressure unit accessory and a dispensing mechanism accessory that detachably and interchangeably attached to accessory attachments on the reservoir container that are in fluid communication with the internal volume of the reservoir container. The pressure unit accessory includes a pressure regulator and a removable gas canister for pressurizing the reservoir container and dispensing the beverage through the dispensing mechanism accessory.