Abstract: Techniques for implementing an integrated antenna structure are described. In at least some embodiments, the integrated antenna structure includes an antenna that is folded and/or meandered in design to enable the antenna to be incorporated into a compact area. The integrated antenna structure further includes a printed circuit board (PCB) with a ground plane to which the antenna is connected. In implementations, the antenna and the PCB can be combined to form an integrated radiating structure that can be incorporated into a device to enable the device to transmit and/or receive wireless signals.

Abstract: Various embodiments and methods relating to a drum having a polymer layer with channels on a metal cylinder are disclosed.

Abstract: Various apparatus and methods for bending a sheet of media are disclosed.

Abstract: A re-circulating fluid delivery system includes an air-fluid separator structure, a fluid plenum in fluid communication with the separator structure, and a free fluid reservoir. A fluid re-circulation path fluidically couples the separator structure, the fluid plenum and the free fluid reservoir. A pump structure re-circulates fluid through the re-circulation path during a pump mode, wherein air bubbles may be separated from re-circulated fluid.

Abstract: Various embodiments and methods relating to a drum having a polymer layer with channels on a metal cylinder are disclosed.

Abstract: Various apparatus and methods for bending a sheet of media are disclosed.

Abstract: Representative embodiments provide for a fuel activation device including a fuel storage chamber configured to store a plurality of fuel pellets arranged as a stack. A fuel dispensing device is configured to transport a fuel pellet to a fuel activation chamber. A spring is configured to advance the fuel pellets toward the fuel dispensing device as one or more fuel pellets are removed from the stack. A fuel initiator is configured to activate a release of hydrogen gas from the transported fuel pellet. The fuel activation device is configured to provide the hydrogen gas to a fuel cell through a gas vent. A method is provided including providing a plurality of fuel pellets arranged as a spring-loaded stack, transporting a fuel pellet from the stack, activating a release of hydrogen gas from the transported fuel pellet, and providing the hydrogen gas to a fuel cell.

Abstract: A re-circulating fluid delivery system includes an air-fluid separator structure, a fluid plenum in fluid communication with the separator structure, and a free fluid reservoir. A fluid re-circulation path fluidically couples the separator structure, the fluid plenum and the free fluid reservoir. A pump structure re-circulates fluid through the re-circulation path during a pump mode, wherein air bubbles may be separated from re-circulated fluid.

Abstract: A rejuvenation station has a housing with a first area adapted to hold a fluid supply, and a second area adapted to hold a printer cartridge. In the first area is a first fluidic interconnect that is adapted to couple with the fluid supply. In the second area is a second fluidic interconnect that is adapted to couple with the printer cartridge. A fluid path in the housing couples the fluidic interconnects. An actuator extracts fluid from at least one of the fluid supply and the printer cartridge, and inserts fluid into the printer cartridge through the fluid path.

Abstract: An over-molded fluid control value for use in fluid delivery systems. An embodiment of the fluid control valve includes a rigid substrate having a opening defined therein, and a valve structure fabricated of an elastomeric material. The valve structure is over-molded over at least a portion of the rigid substrate and including a valve portion extending over the opening, the valve portion movable in response to a differential fluid pressure to allow fluid flow.

Abstract: An overmolded diaphragm pump for applying pumping force to a fluid such as liquid ink for ink-jet printing. The pump structure includes a rigid substrate having at least one chamber opening, and an elastomeric diaphragm and sealing structure fabricated of an elastomeric material. This diaphragm and sealing structure is overmolded over a portion of the rigid substrate and includes at least one diaphragm portion extending over a corresponding chamber opening. A gland seal portion makes a seal between the elastomeric diaphragm and sealing structure and a mating part.

Abstract: A rejuvenation station has a housing with a first area adapted to hold a fluid supply, and a second area adapted to hold a printer cartridge. In the first area is a first fluidic interconnect that is adapted to couple with the fluid supply. In the second area is a second fluidic interconnect that is adapted to couple with the printer cartridge. A fluid path in the housing couples the fluidic interconnects. An actuator extracts fluid from at least one of the fluid supply and the printer cartridge, and inserts fluid into the printer cartridge through the fluid path.

Abstract: A rejuvenation station has a housing with a first area adapted to hold a fluid supply, and a second area adapted to hold a printer cartridge. In the first area is a first fluidic interconnect that is adapted to couple with the fluid supply. In the second area is a second fluidic interconnect that is adapted to couple with the printer cartridge. A fluid path in the housing couples the fluidic interconnects. An actuator extracts fluid from at least one of the fluid supply and the printer cartridge, and inserts fluid into the printer cartridge through the fluid path.

Abstract: Techniques for improving reliability of print cartridges that employ a fluid recirculation path within the cartridges. One reliability feature is provided by active heat management, wherein the recirculation path is employed to provide printhead cooling. Another feature is an in-printer printhead and standpipe priming technique. Idle time tolerance can also be improved, with the ability to re-circulate ink and purge air, to provide a mode of operation that can improve the reliability of the print cartridge during idle times. A “cleaning fluid” can be introduced that could break-up the sludge as it circulates through the print cartridge. Improved particle filtering is provided, through fluid recirculating through the system, passing through the standpipe or plenum area and across the backside of the printhead. As the fluid moves through this region, particles trapped in the standpipe get swept out of the area and eventually through a filter before reaching the printhead again.

Abstract: A fluid delivery system and method, which employs a print head assembly (PHA) and an fluid supply for intermittent connection. A pump structure re-circulates fluid through the re-circulation path during a pump mode. The fluid supply includes a supply reservoir for holding a supply of fluid, and is connectable to the PHA to provide a fluid interconnect between the supply reservoir and the PHA fluid reservoir when a pressure differential between the PHA and the supply reservoir is sufficient to draw fluid into the PHA free fluid reservoir to replenish the fluid in the PHA fluid reservoir.

Abstract: A seal septum structure includes a septum body structure fabricated of a resilient material. The body structure includes an opening formed there through and a first seal surface circumscribing the opening to engage against a needle when inserted into the opening. The body structure further includes a second seal surface for engaging against a stopper structure when the needle is not inserted into the opening. The septum structure can be over-molded on a rigid host part, or fabricated as a separate structure from the host part, and pressed in to place.

Abstract: A fluid delivery system includes a print cartridge and a fluid supply. The print cartridge includes a housing structure, an air-fluid separator structure within the housing structure, including an air vent region in communication with the seperator structure. A fluid ejector is mounted to the housing structure, and a fluid plenum within the housing structure is in fluid communication with the fluid ejector. A fluid reservoir in the housing structures is in fluid communication with the plenum for supplying fluid to the plenum under negative pressure. A fluid re-circulation path is provided in the housing structure through the separator structure and the fluid plenum. A pump structure re-circulates fluid and air through the re-circulation path during a pump mode. The fluid supply is continuously or intermittently fluidically coupled to the fluid reservoir.

Abstract: An over-molded fluid control value for use in fluid delivery systems. An embodiment of the fluid control valve includes a rigid substrate having a opening defined therein, and a valve structure fabricated of an elastomeric material. The valve structure is over-molded over at least a portion of the rigid substrate and including a valve portion extending over the opening, the valve portion movable in response to a differential fluid pressure to allow fluid flow.

Abstract: A seal septum structure includes a septum body structure fabricated of a resilient material. The body structure includes an opening formed there through and a first seal surface circumscribing the opening to engage against a needle when inserted into the opening. The body structure further includes a second seal surface for engaging against a stopper structure when the needle is not inserted into the opening. The septum structure can be over-molded on a rigid host part, or fabricated as a separate structure from the host part, and pressed in to place.

Abstract: Techniques for improving reliability of print cartridges that employ a fluid recirculation path within the cartridges. One reliability feature is provided by active heat management, wherein the recirculation path is employed to provide printhead cooling. Another feature is an in-printer printhead and standpipe priming technique. Idle time tolerance can also be improved, with the ability to re-circulate ink and purge air, to provide a mode of operation that can improve the reliability of the print cartridge during idle times. A “cleaning fluid” can be introduced that could break-up the sludge as it circulates through the print cartridge. Improved particle filtering is provided, through fluid recirculating through the system, passing through the standpipe or plenum area and across the backside of the printhead.