Abstract: A retaining clip is provided for use with a heat sink. The heat sink has a flat bottom surface in heat conducting engagement with an electronic device and fins extending from a top surface of the heat sink, the fins defining a channel. The retainer clip includes a middle section and a first end section and a second end section on either side of the middle section. The middle section fits within the channel and engages the heat sink to hold the bottom surface against the electronic device. The middle section further includes a portion extending above the top surface, within the channel, to limit rotation of the heat sink. Each of the first and second end sections include a pivot end adjacent to the middle section, a distal end to engage an anchor, a first leg adjacent to the distal end, a second leg adjacent to a pivot end, and a bend between the first leg and the second leg, the bend located to form a moment arm from the pivot end.

Abstract: A retaining clip is provided for use with a heat sink. The heat sink has a flat bottom surface in heat conducting engagement with an electronic device and fins extending from a top surface of the heat sink, the fins defining a channel. The retainer clip includes a middle section and a first end section and a second end section on either side of the middle section. The middle section fits within the channel and engages the heat sink to hold the bottom surface against the electronic device. The middle section further includes a portion extending above the top surface, within the channel, to limit rotation of the heat sink. Each of the first and second end sections include a pivot end adjacent to the middle section, a distal end to engage an anchor, a first leg adjacent to the distal end, a second leg adjacent to a pivot end, and a bend between the first leg and the second leg, the bend located to form a moment arm from the pivot end.

Abstract: A heat dissipating element (e.g., a heat sink) is held in an initial position closer to a heat generating structure (e.g., a microprocessor) and in a subsequent position farther from the microprocessor. A thermal interface material (e.g., a thermal grease) spans the gap, but is not held under compression, between the heat sink and the microprocessor.

Abstract: A fuel cell system includes fuel cells forming a fuel cell stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a controller is coupled to temporarily increase the oxidant stream flow rate through the oxidant passage, and to temporarily open the fuel purge valve, if a voltage across a pair of fuel cells is less than a defined threshold voltage. In this resuscitation step, the oxidant flow rate can be temporarily increased by increasing a duty cycle of an air compressor by approximately 50% for a duration of between approximately 5 to 10 seconds. The controller can further shut down fuel cell operation if a voltage across a pair of fuel cells is less than a defined threshold voltage in an inter-resuscitation period immediately following the resuscitation step.

Abstract: A fuel cell system includes fuel cells forming a fuel cell stack, having a fuel passage and an oxidant passage. A purge valve is coupled to the fuel passage to exhaust contaminants, and a controller is coupled to temporarily increase the oxidant stream flow rate through the oxidant passage, and to temporarily open the fuel purge valve, if a voltage across a pair of fuel cells is less than a defined threshold voltage. In this resuscitation step, the oxidant flow rate can be temporarily increased by increasing a duty cycle of an air compressor by approximately 50% for a duration of between approximately 5 to 10 seconds. The controller can further shut down fuel cell operation if a voltage across a pair of fuel cells is less than a defined threshold voltage in an inter-resuscitation period immediately following the resuscitation step.

Abstract: A heat dissipating element (e.g., a heat sink) is held in an initial position closer to a heat generating structure (e.g., a microprocessor) and in a subsequent position farther from the microprocessor. A thermal interface material (e.g., a thermal grease) spans the gap, but is not held under compression, between the heat sink and the microprocessor.

Abstract: A heat dissipating element (e.g., a heat sink) is held in an initial position closer to a heat generating structure (e.g., a microprocessor) and in a subsequent position farther from the microprocessor. A thermal interface material (e.g., a thermal grease) spans the gap, but is not held under compression, between the heat sink and the microprocessor.

Abstract: An apparatus is disclosed for attaching a thermal solution to a mini-cartridge. The apparatus comprises: a bracket adapted to be snapped into position around the mini-cartridge; two or more threads formed in the bracket, the threads positioned such that when the bracket is snapped into position around the mini-cartridge the threads are located on the side of the mini-cartridge opposite from the side adjacent to the thermal solution; and screws adapted to run through holes in the mini-cartridge to engage with the threads and to fixedly attach the thermal solution to the mini-cartridge.

Abstract: A coupling such as a socket may couple one electronic device to another and may reduce differential thermal expansion between the two coupled devices. For example, a surface mount socket may differentially expand relative to a printed circuit board. By incorporating a structure having a coefficient of thermal expansion that matches the coefficient of thermal expansion of the printed circuit board, differential thermal expansion may be lessened and the possibility of mechanical damage may be reduced.

Abstract: An apparatus is disclosed for attaching a thermal solution to a mini-cartridge. The apparatus comprises: a bracket adapted to be snapped into position around the mini-cartridge; two or more threads formed in the bracket, the threads positioned such that when the bracket is snapped into position around the mini-cartridge the threads are located on the side of the mini-cartridge opposite from the side adjacent to the thermal solution; and screws adapted to run through holes in the mini-cartridge to engage with the threads and to fixedly attach the thermal solution to the mini-cartridge.

Abstract: An electronic cartridge comprising a cartridge substrate, a package substrate, an integrated circuit, and an enclosure. The package substrate is mounted to the cartridge substrate. The integrated circuit is mounted to the package substrate. The enclosure encloses the integrated circuit, the package substrate and the cartridge substrate.

Abstract: An edge manifold assembly conducts, introduces and receives reactant and coolant streams to and from an electrochemical fuel cell stack. The assembly comprises a plurality of manifold plates. Each of the fuel cells has a pair of manifold plates attached thereto. Each of the manifold plates has at least one manifold opening formed therein for containing a fluid and at least one channel formed therein for effecting fluid communication between the manifold opening and the fuel cell to which the manifold plate is attached.

Abstract: A plastic file sleeve and index card set for organized record retention and use, including a sleeve having two relatively wide end walls, two relatively narrow side walls, open at the top and bottom defining a sleeve cavity therein to receive index file cards as described. The index file cards include a body portion having a width corresponding to that of the sleeve cavity for insertion therein, and include a tabulating strip portion across the top of the card which is wider than the sleeve. The tabulating strip portion of the cards includes shoulder portions which project outwardly from each opposite end beyond the corresponding respective side edges of the body portion of the cards. The outwardly projecting shoulder portions of the cards rest against the top edge of the sleeve, thereby supporting the tabulating strip portion above the sleeve for visual examination without having to reach in the sleeve and withdraw cards for examination.