Patents by Inventor Jason K. Shiepe
Jason K. Shiepe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7354675Abstract: An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is an electrically conductive sheet and is of a structure that is conformable to pressure variations within the cell. Methods of forming the pressure pad include disposing dimples or corrugations at the electrically conductive member. A method of maintaining compression within the cell includes disposing the electrically conductive member and the compression member at the first electrode, applying a load at the cell to compress the cell components, and maintaining electrical communication through the electrically conductive member.Type: GrantFiled: September 27, 2001Date of Patent: April 8, 2008Assignee: Proton Energy Systems, Inc.Inventors: Trent M. Molter, Lawrence C. Moulthrop, Jr., Jason K. Shiepe, A. John Speranza, Robert H. Byron, Jr.
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Patent number: 7168465Abstract: Disclosed herein are mobile hydrogen gas dispensing apparatus, and methods for dispensing hydrogen gas. In one embodiment, the mobile hydrogen gas dispensing apparatus comprises a first outlet and a second outlet. The first outlet comprises a first valve, a first hydrogen gas output port, a first nozzle, a first display panel in operable communication with the first hydrogen gas output port, and a first hose forming fluid communication between the first hydrogen output port and the first nozzle. The apparatus further comprises: an electrochemical cell disposed in fluid communication with the first outlet, and a mobile platform, wherein the first outlet and the electrochemical cell are mechanically connected to the mobile platform.Type: GrantFiled: January 22, 2003Date of Patent: January 30, 2007Assignee: Proton Energy Systems, Inc.Inventors: Fred Mitlitsky, John F. Boyle, Luke T. Dalton, Blake Myers, Hassan Obahi, Jason K. Shiepe
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Patent number: 7166382Abstract: Treated porous flow field members are used to support membranes in electrochemical cells and to enhance fluid flow to and from the membrane. The treated porous includes a support material having at least a portion thereof treated with a quantity of hydrophobic polymer, a quantity of hydrophilic polymer, or a quantity of a mixture of a hydrophobic polymer and a hydrophilic polymer. Depending on the type of treatment and the placement of the polymer-treated porous support, various fluid flow enhancements are attained.Type: GrantFiled: September 27, 2001Date of Patent: January 23, 2007Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Trent M. Molter, Lawrence C. Moulthrop, Jr.
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Patent number: 7153409Abstract: In one embodiment, the electrochemical system comprises an electrochemical cell and hydrogen storage in fluid communication with the hydrogen electrode, the hydrogen storage comprising at least one of carbon nanotubes and carbon nanofibers. In one embodiment, the method for operating an electrochemical cell system, comprises introducing water to an oxygen electrode and electrolyzing the water to form oxygen, hydrogen ions and electrons, wherein the hydrogen ions migrate to a hydrogen electrode. The hydrogen ions can then be reacted with the electrons to form hydrogen gas that is stored in at least one of carbon nanotubes and carbon nanofibers.Type: GrantFiled: June 6, 2003Date of Patent: December 26, 2006Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Frano Barbir
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Patent number: 7128103Abstract: Disclosed herein are an electrochemical system, a hydrogen gas fueling system, a cascade system, and methods for using the same. The hydrogen gas fueling system comprises a multiple-stage compressor disposed in fluid communication with a hydrogen gas source, the compressor configured to cool hydrogen gas received at a stage of the compressor, a cascade section comprising at least two hydrogen gas storage zones disposed in fluid communication with the compressor at the outlet of the compressor, and a hydrogen gas dispensing section disposed in fluid communication with the cascade section.Type: GrantFiled: January 22, 2003Date of Patent: October 31, 2006Assignee: Proton Energy Systems, Inc.Inventors: Fred Mitlitsky, John F. Boyle, Luke T. Dalton, Blake Myers, Hassan Obahi, Jason K. Shiepe
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Patent number: 6926988Abstract: An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is compatible with the cell environment and is configured to support the electrodes and the membrane. The pressure pad includes an electrically conductive member and a compression member disposed at the electrically conductive member. A method of maintaining compression within the cell includes disposing the electrically conductive member and the compression member at the first electrode, applying a load at the cell to compress the cell components, and maintaining electrical communication through the electrically conductive member.Type: GrantFiled: September 27, 2001Date of Patent: August 9, 2005Assignee: Proton Energy Systems, Inc.Inventors: Mark E. Dristy, Thomas Skoczylas, Greg A. Hanlon, Jason K. Shiepe
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Patent number: 6916443Abstract: An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with the electrolyte membrane.Type: GrantFiled: August 25, 2003Date of Patent: July 12, 2005Assignee: Proton Energy Systems, Inc.Inventors: Thomas Skoczylas, Matthew Christopher, Jason K. Shiepe, Mark E. Dristy, Trent M. Molter
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Electrode catalyst composition, electrode, and membrane electrode assembly for electrochemical cells
Patent number: 6828056Abstract: An electrode composition comprises a support material that is non-oxidizable at anodic potentials less than about 4 volts, and a catalyst material comprising active electrocatalytic sites. In another embodiment, the electrode can further comprise a proton conductive material disposed on the support and catalyst materials.Type: GrantFiled: September 27, 2001Date of Patent: December 7, 2004Assignee: Proton Energy Systems, Inc.Inventors: Trent M. Molter, Jason K. Shiepe, A. John Speranza -
ELECTRODE CATALYST COMPOSITION, ELECTRODE, AND MEMBRANE ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL CELLS
Publication number: 20040224215Abstract: An electrode composition comprises a support material that is non-oxidizable at anodic potentials less than about 4 volts, and a catalyst material comprising active electrocatalytic sites. In another embodiment, the electrode can further comprise a proton conductive material disposed on the support and catalyst materials.Type: ApplicationFiled: September 27, 2001Publication date: November 11, 2004Inventors: Trent M. Molter, Jason K. Shiepe, A. John Speranza -
Patent number: 6783885Abstract: An electrochemical cell system includes a hydrogen electrode; an oxygen electrode; a membrane disposed between the hydrogen electrode and the oxygen electrode; and a compartmentalized storage tank. The compartmentalized storage tank has a first fluid storage section and a second fluid storage section separated by a movable divider. The compartmentalized storage tank is in fluid communication with the electrochemical cell. Further, an electrochemical cell includes a hydrogen electrode; an oxygen electrode; an electrolyte membrane disposed between and in intimate contact with the hydrogen electrode and said oxygen electrode; an oxygen flow field disposed adjacent to and in intimate contact with the oxygen electrode; a hydrogen flow field disposed adjacent to and in intimate contact with the hydrogen electrode; a water flow field disposed in fluid communication with the oxygen flow field; and a media divider disposed between the oxygen flow field and the water flow field.Type: GrantFiled: August 20, 2002Date of Patent: August 31, 2004Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Trent M. Molter
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Publication number: 20040105773Abstract: An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with the electrolyte membrane.Type: ApplicationFiled: August 25, 2003Publication date: June 3, 2004Applicant: PROTON ENERGY SYSTEMS, INC.Inventors: Thomas Skoczylas, Matthew Christopher, Jason K. Shiepe, Mark E. Dristy, Trent M. Molter
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Patent number: 6682845Abstract: A unitary, porous, electrically conductive pressure pad is employed in an electrochemical cell stack. The pressure pad includes integral mixture of electrically conductive material and polymeric material, generally formed of materials compatible with the electrochemical cell. The electrically conductive pressure pad is preferably in at least in partial fluid communication with the first electrode, the second electrode, or both the first and second electrodes.Type: GrantFiled: September 27, 2001Date of Patent: January 27, 2004Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Greg A. Hanlon
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Publication number: 20040011668Abstract: In one embodiment, the electrochemical system comprises an electrochemical cell and hydrogen storage in fluid communication with the hydrogen electrode, the hydrogen storage comprising at least one of carbon nanotubes and carbon nanofibers. In one embodiment, the method for operating an electrochemical cell system, comprises introducing water to an oxygen electrode and electrolyzing the water to form oxygen, hydrogen ions and electrons, wherein the hydrogen ions migrate to a hydrogen electrode. The hydrogen ions can then be reacted with the electrons to form hydrogen gas that is stored in at least one of carbon nanotubes and carbon nanofibers.Type: ApplicationFiled: June 6, 2003Publication date: January 22, 2004Inventors: Jason K. Shiepe, Frano Barbir
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Patent number: 6666961Abstract: An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous support that is disposed in intimate contact and fluid communication with the electrolyte membrane.Type: GrantFiled: November 17, 2000Date of Patent: December 23, 2003Assignee: Proton Energy Systems, Inc.Inventors: Thomas Skoczylas, Matthew Christopher, Jason K. Shiepe, Mark E. Dristy, Trent M. Molter
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Publication number: 20030175564Abstract: Disclosed herein are an electrochemical system, a hydrogen gas fueling system, a cascade system, and methods for using the same. The hydrogen gas fueling system comprises a multiple-stage compressor disposed in fluid communication with a hydrogen gas source, the compressor configured to cool hydrogen gas received at a stage of the compressor, a cascade section comprising at least two hydrogen gas storage zones disposed in fluid communication with the compressor at the outlet of the compressor, and a hydrogen gas dispensing section disposed in fluid communication with the cascade section.Type: ApplicationFiled: January 22, 2003Publication date: September 18, 2003Inventors: Fred Mitlitsky, John F. Boyle, Luke T. Dalton, Blake Myers, Hassan Obahi, Jason K. Shiepe
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Patent number: 6613215Abstract: A method for operating an electrolysis cell at a range of pressures and current densities, the cell having an ultrathin composite membrane, preferably comprising an expanded polytetrafluoroethylene base material impregnated with a hydrogen conducting ionomer. The resulting membrane is unexpectedly durable and efficient when used in an electrolysis cell operating at high membrane pressure differentials, thereby allowing greater cell current densities and efficiency.Type: GrantFiled: September 21, 2001Date of Patent: September 2, 2003Assignee: Proton Energy Systems, Inc.Inventors: Trent M. Molter, Jason K. Shiepe
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Publication number: 20030148153Abstract: Disclosed herein are mobile hydrogen gas dispensing apparatus, and methods for dispensing hydrogen gas. In one embodiment, the mobile hydrogen gas dispensing apparatus comprises a first outlet and a second outlet. The first outlet comprises a first valve, a first hydrogen gas output port, a first nozzle, a first display panel in operable communication with the first hydrogen gas output port, and a first hose forming fluid communication between the first hydrogen output port and the first nozzle. The apparatus further comprises: an electrochemical cell disposed in fluid communication with the first outlet, and a mobile platform, wherein the first outlet and the electrochemical cell are mechanically connected to the mobile platform.Type: ApplicationFiled: January 22, 2003Publication date: August 7, 2003Inventors: Fred Mitlitsky, John F. Boyle, Luke T. Dalton, Blake Myers, Hassan Obahi, Jason K. Shiepe
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Publication number: 20030148171Abstract: A ventilation system for an electrochemical cell includes a control unit, a sensor disposed in informational communication with the control unit, and a fan disposed in operable communication with the control unit. The sensor is configured to sense a condition within the ventilation system, and the fan is operable in response to information received at the sensor.Type: ApplicationFiled: January 22, 2003Publication date: August 7, 2003Inventors: Fred Mitlitsky, John F. Boyle, Luke T. Dalton, Blake Myers, Hassan Obahi, Jason K. Shiepe
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Patent number: 6585869Abstract: The present invention relates to a unique electrochemical cell stack which employs an electrically conductive pressure pad. The pressure pad is composed of material compatible with the electrochemical cell environment and is disposed on the high pressure side of the membrane assembly, in intimate contact with the high pressure side screen pack.Type: GrantFiled: April 16, 2001Date of Patent: July 1, 2003Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Mark E. Dristy, Trent M. Molter, Lawrence C. Moulthrop, Jr.
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Publication number: 20030104263Abstract: An electrochemical cell includes a first electrode, a second electrode, a proton exchange membrane disposed between and in intimate contact with the electrodes, and a pressure pad disposed in electrical communication with the first electrode. The pressure pad is an electrically conductive sheet and is of a structure that is conformable to pressure variations within the cell. Methods of forming the pressure pad include disposing dimples or corrugations at the electrically conductive member. A method of maintaining compression within the cell includes disposing the electrically conductive member and the compression member at the first electrode, applying a load at the cell to compress the cell components, and maintaining electrical communication through the electrically conductive member.Type: ApplicationFiled: September 27, 2001Publication date: June 5, 2003Inventors: Trent M. Molter, Lawrence C. Moulthrop, Jason K. Shiepe, A. John Speranza, Robert H. Byron