Abstract: A system for dispensing a beverage from a pressurized beverage container, the system including an interface having a housing, a tap assembly, a dip tube, a carry handle, and a receiving section. The housing is configured to fasten to a neck portion of a beverage container. The tap assembly rigidly extends from the housing and has a tap handle and a passageway configured to allow a beverage to pass through the tap assembly and out a dispensing end of the tap assembly when the tap handle is activated. The dip tube extends from a first side of the housing and is coupled to the passageway of the tap assembly. The carry handle extends from the housing. The receiving section is configured to receive a pressure regulator and includes an opening extending from a second side of the housing through the first side of the housing.

Abstract: A pressurized beverage dispensing device that includes a vessel, a gas reservoir, a pressure regulation device, a primary filter, and a tap assembly. The gas reservoir is configured to supply pressurized gas within the vessel. The pressure regulation device is configured to maintain a pressure within the vessel that is above ambient pressure. The primary filter is configured to fit inside the vessel and to be removable from the vessel. The tap assembly includes a tap valve, a restrictor, and a flow straightener. The tap valve is configured to control dispensing through an outlet path. The restrictor is within the outlet path of the tap assembly and is configured to accelerate a flow of beverage to a turbulent flow. The flow straightener is within the outlet path of the tap assembly, downstream of the restrictor, and is configured to recombine, slow, and straighten the flow of beverage.

Abstract: 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.

Abstract: An integrated device including a vessel, a gas reservoir, a pressure regulation device, a primary filter, and a tap assembly. The vessel is configured to contain a beverage. The gas reservoir is configured to supply pressurized gas within the vessel. The pressure regulation device is configured to maintain an infusing pressure within the vessel and also a dispensing pressure within the vessel. The primary filter is configured to hold solid brewing media, to fit inside the vessel, and to be removable from the vessel. The tap assembly is configured to dispense the beverage from the vessel. Methods are also disclosed.

Abstract: A system for dispensing a beverage from a pressurized beverage container, the system including an interface having a housing, a tap assembly, a dip tube, a carry handle, and a receiving section. The housing is configured to fasten to a neck portion of a beverage container. The tap assembly rigidly extends from the housing and has a tap handle and a passageway configured to allow a beverage to pass through the tap assembly and out a dispensing end of the tap assembly when the tap handle is activated. The dip tube extends from a first side of the housing and is coupled to the passageway of the tap assembly. The carry handle extends from the housing. The receiving section is configured to receive a pressure regulator and includes an opening extending from a second side of the housing through the first side of the housing.

Abstract: A system for regulating pressure within a beverage container. A high-side cartridge assembly includes a cartridge shell enclosing a high-pressure cavity, a piercing tip to puncture a pressurized-gas container, a high-pressure passage extending through the piercing tip and to the high-pressure cavity, and a piston to intermittently open the high-pressure cavity to a low-pressure cavity external to the high-side cartridge assembly. The low-side cap assembly includes a cap body having a socket configured to receive the high-side cartridge assembly, and no part of the cap body forms a boundary of the high-pressure cavity. Also disclosed is an interface having a housing, a tap assembly, a dip tube, a carry handle, and a receiving section. The housing is configured to couple to a beverage container, and the receiving section is configured to receive a pressure regulator.

Abstract: An integrated device including a vessel, a gas reservoir, a pressure regulation device, a primary filter, and a tap assembly. The vessel is configured to contain a beverage. The gas reservoir is configured to supply pressurized gas within the vessel. The pressure regulation device is configured to maintain an infusing pressure within the vessel and also a dispensing pressure within the vessel. The primary filter is configured to hold solid brewing media, to fit inside the vessel, and to be removable from the vessel. The tap assembly is configured to dispense the beverage from the vessel. Methods are also disclosed.

Abstract: A system for regulating pressure within a beverage container. A high-side cartridge assembly includes a cartridge shell enclosing a high-pressure cavity, a piercing tip to puncture a pressurized-gas container, a high-pressure passage extending through the piercing tip and to the high-pressure cavity, and a piston to intermittently open the high-pressure cavity to a low-pressure cavity external to the high-side cartridge assembly. The low-side cap assembly includes a cap body having a socket configured to receive the high-side cartridge assembly, and no part of the cap body forms a boundary of the high-pressure cavity. Also disclosed is an interface having a housing, a tap assembly, a dip tube, a carry handle, and a receiving section. The housing is configured to couple to a beverage container, and the receiving section is configured to receive a pressure regulator.

Abstract: A fuel cell stack (30) includes an integrated end plate assembly having a current collector (40) secured adjacent and end cell (36) of the stack, a pressure plate (42) secured adjacent the current collector (40), and a backbone (60) secured within a backbone-support plane (44) defined within the plate (42). Tie rod ends (62, 64, 66, 68) of the backbone (60) extend over a gap (84) defined between the backbone-support plane (44) and a deflection plane (50) defined within the pressure plate (42) so that the tie rod ends deflect within the gap (84) upon tightening of tie rods (78, 80). Deflection of the backbone enables the backbone (60) to permit limited expansion of the fuel cell stack (30) during operation, and the backbone (60) has adequate flexural strength to prohibit expansion of the stack (30) beyond operating dynamic limits of the stack (30).

Abstract: To mitigate bubble blockage in water passageways (78, 85), in or near reactant gas flow field plates (74, 81) of fuel cells (38), passageways are configured with (a) intersecting polygons, obtuse angles including triangles, trapezoids, or (b) hydrophobic surfaces (111), or (c) differing adjacent channels (127, 128), or (d) water permeable layers (93, 115, 116, 119) adjacent to water channels or hydrophobic/hydrophilic layers (114, 120).

Abstract: To mitigate bubble blockage in water passageways (78, 85), in or near reactant gas flow field plates (74, 81) of fuel cells (38), passageways are configured with (a) cross sections having intersecting polygons or other shapes, obtuse angles including triangles and trapezoids, or (b) hydrophobic surfaces (111), or (c) differing adjacent channels (127, 128), or (d) water permeable layers (93, 115, 116, 119) adjacent to water channels or hydrophobic/hydrophilic layers (114, 120), or (e) diverging channels (152).

Abstract: To mitigate bubble blockage in water passageways (78, 85), in or near reactant gas flow field plates (74, 81) of fuel cells (38), passageways are configured with (a) intersecting polygons, obtuse angles including triangles, trapezoids, or (b) hydrophobic surfaces (111), or (c) differing adjacent channels (127, 128), or (d) water permeable layers (93, 115, 116, 119) adjacent to water channels or hydrophobic/hydrophilic layers (114, 120).

Abstract: A fuel cell stack (30) includes an integrated end plate assembly having a current collector (40) secured adjacent and end cell (36) of the stack, a pressure plate (42) secured adjacent the current collector (40), and a backbone (60) secured within a backbone-support plane (44) defined within the plate (42). Tie rod ends (62, 64, 66, 68) of the backbone (60) extend over a gap (84) defined between the backbone-support plane (44) and a deflection plane (50) defined within the pressure plate (42) so that the tie rod ends deflect within the gap (84) upon tightening of tie rods (78, 80). Deflection of the backbone enables the backbone (60) to permit limited expansion of the fuel cell stack (30) during operation, and the backbone (60) has adequate flexural strength to prohibit expansion of the stack (30) beyond operating dynamic limits of the stack (30).

Abstract: A fuel cell power plant (20) includes a variable resistive device (30). In one example, the variable resistive device (30) is operationally associated directly with a cell stack assembly (22). The controller (32) selectively varies an electrical resistance of the variable resistive device (30) responsive to an operating condition of the power plant (20). By using a variable resistive device, a variety of control functions are possible to address various operating conditions of the power plant (20) or the cell stack assembly (22).