Patents Assigned to Fuel Cell Technologies, Inc.
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Patent number: 7029779Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other. The hydrogen reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: GrantFiled: November 9, 2004Date of Patent: April 18, 2006Assignee: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen A. Marsh
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Patent number: 7008710Abstract: A fuel cell system includes a fuel cell stack, an air supply system including a blower for driving the air to the fuel cell stack and an air humidifier for humidifying the air supplied to the fuel cell stack, a hydrogen supply system including a hydrogen storage and a pressure regulating device, and a hydrogen recirculator for receiving excessive hydrogen from the fuel cell stack and forcing the hydrogen back into the fuel cell stack in order to induce a hydrogen flow inside the fuel cell stack. A control circuit electrically controls the flow and pressure regulating device for regulating the hydrogen flow to the fuel cell stack and electrically controls the blower to regulate the air flows to the fuel cell stack and the air humidifier.Type: GrantFiled: April 16, 2003Date of Patent: March 7, 2006Assignee: Asia Pacific Fuel Cell Technologies, Inc.Inventors: Jefferson YS Yang, Yao-Sheng Hsu
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Patent number: 7008717Abstract: An anode stream recirculation system for a fuel cell, the fuel cell including an anode gas input and an anode gas output, the anode stream recirculation system comprising: an anode gas supply; a switch connected with the anode gas supply; a pressure regulating device connected between the switch and the anode gas input of the fuel cell; a diaphragm pump connected between the anode gas output and the anode gas input of the fuel cell thereby forming an anode gas recirculation; wherein the diaphragm pump has at least a sensor electrically connected with the switch.Type: GrantFiled: February 12, 2004Date of Patent: March 7, 2006Assignee: Asia Pacific Fuel Cell Technologies, Inc.Inventor: Jefferson YS Yang
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Patent number: 6991866Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other. The hydrogen reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: GrantFiled: September 29, 2004Date of Patent: January 31, 2006Assignee: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen A. Marsh
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Publication number: 20050158595Abstract: A self-regulating gas generator that, in response to gas demand, supplies and automatically adjusts the amount of gas (e.g., hydrogen or oxygen) catalytically generated in a chemical supply chamber from an appropriate chemical supply, such as a chemical solution, gas dissolved in liquid, or mixture. The gas generator may employ a piston, rotating rod, or other element(s) to expose the chemical supply to the catalyst in controlled amounts. The gas generator may be used to provide gas for various gas consuming devices, such as a fuel cell, torch, or oxygen respiratory devices.Type: ApplicationFiled: November 15, 2004Publication date: July 21, 2005Applicant: Integrated Fuel Cell Technologies, Inc.Inventors: Stephen Marsh, Donald Parker, Peter Pintauro
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Publication number: 20050130021Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other. The hydrogen reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: ApplicationFiled: November 9, 2004Publication date: June 16, 2005Applicant: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen Marsh
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Publication number: 20050060876Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other. The hydrogen reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: ApplicationFiled: September 29, 2004Publication date: March 24, 2005Applicant: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen Marsh
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Patent number: 6815110Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: GrantFiled: September 7, 2001Date of Patent: November 9, 2004Assignee: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen A. Marsh
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Publication number: 20020110722Abstract: This invention is related to a fuel cell, comprising: a fuel cell stack; two end plates provided at the longitudinal, opposing ends of the cell stack; a plurality of tie rods, passing through a peripheral region of each end plate for positioning the cell stack between the two end plates; and at least one uniform compression device, positioned between the cell stack and one of the end plates, wherein the uniform compression device includes at least one pressure bellows that constantly applies a consistent and distributed operative contact pressure towards the cell stack for enhancing the conductivity and operative efficiency of the fuel cell.Type: ApplicationFiled: August 24, 2001Publication date: August 15, 2002Applicant: Asia Pacific Fuel Cell Technologies, Inc.Inventor: Jefferson YS Yang
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Publication number: 20020045082Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other.Type: ApplicationFiled: September 7, 2001Publication date: April 18, 2002Applicant: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen A. Marsh
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Patent number: 6312846Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming a proton exchange membrane PEM barrier in the etched channel. The barrier divides the channel into two. A hydrogen fuel is admitted into one of the divided channels and an oxidant into the other. The hydrogen reacts with a catalyst formed on an anode electrode at the hydrogen side of the channel to release hydrogen ions (protons) which are absorbed into the PEM. The protons migrate through the PEM and recombine with return hydrogen electrons on a cathode electrode on the oxygen side of the PEM and the oxygen to form water.Type: GrantFiled: November 24, 1999Date of Patent: November 6, 2001Assignee: Integrated Fuel Cell Technologies, Inc.Inventor: Stephen A. Marsh
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Patent number: 6124053Abstract: A novel fuel cell design is provided having a combustion chamber manifold internal to a fuel cell stack and interfacing one or more anode passage outlets and cathode passage inlets. The combustion chamber is equipped to combine a primary source of oxidant gas with an anode exhaust stream and to combust the mixture, if desired, for use as fuel within the cathode passage. The fuel cell design also provides an external gas manifold for directing carrier gas to the cathode passages upstream of the cathode passage inlets for combining with the combustion chamber exhaust prior to entry into the cathode passages.Type: GrantFiled: July 9, 1998Date of Patent: September 26, 2000Assignee: Fuel Cell Technologies, Inc.Inventors: Randolph M. Bernard, Jeffrey Allen