Patents by Inventor Stephen Marsh

Stephen Marsh 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).

  • Publication number: 20150140458
    Abstract: A method of cleaning power cells in an array of power cells, comprising coupling at least one first power cell to second power cells in an array of power cells and causing the second power cells to drive the at least one first power cell with a voltage to clean catalyst on the at least one first power cell.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: Stephen A. Marsh, Lawrence W. Hill
  • Patent number: 8980492
    Abstract: A control circuit controls power generation by a power cell in a presence of fuel and oxidant through electrical control. The control circuit may be extended to an array of power cells or array of banks of power cells to configure the cells or banks in series-row and column combinations to generate power in a selectable manner. The controller may include basic power maintenance and control of the array of power cells, and high level control modules may provide unique power generation control to cause the array to cold start, output time-varying waveforms, output multiple DC voltages from a single source of energy, regulate voltage or current, and so forth. Because the power cells may be configured in vast arrays, power cells may be connected to a group of other power cells in the array and driven with a time-varying voltage or pulse to self-clean catalyst of contaminants.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: March 17, 2015
    Assignee: Encite LLC
    Inventors: Stephen A. Marsh, Lawrence W. Hill
  • Patent number: 8962166
    Abstract: A power cell comprises a membrane with a first side and a second side. The membrane has a geometric structure encompassing a volume. The power cell also has a cover that is coupled to the membrane to separate the first flow path from the second flow path at the membrane. In the power cell, first and second catalyst is in gaseous communication with respective first flow path and second flow path and in ionic communication with respective first and second sides of the membrane. Furthermore, a first electrode is electrically coupled to the first catalyst on the first side of the membrane, and a second electrode is electrically coupled to the second catalyst on the second side of the membrane. In another embodiment, the power cell further includes a substrate on which the membrane is coupled.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: February 24, 2015
    Assignee: Encite LLC
    Inventor: Stephen A. Marsh
  • Patent number: 8834700
    Abstract: A method and an apparatus of reacting reaction components. The method comprises electro-chemically reacting reaction components on opposite sides of at least one membrane with at least one catalyst encompassing a respective volume. In another embodiment, the method includes conducting electrolysis, such as electrolysis of water. The apparatus includes at least one membrane with first and second sides encompassing a respective volume. The apparatus further includes at least one catalyst coupled to the first and second sides to electro-chemically react reaction components on the first and second sides in gaseous communication with the at least one catalyst, and a cover coupled to the at least one membrane to separate flow paths on the first and second sides.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: September 16, 2014
    Assignee: Encite, LLC
    Inventor: Stephen A. Marsh
  • Publication number: 20140072834
    Abstract: A power cell comprises a membrane with a first side and a second side. The membrane has a geometric structure encompassing a volume. The power cell also has a cover that is coupled to the membrane to separate the first flow path from the second flow path at the membrane. In the power cell, first and second catalyst is in gaseous communication with respective first flow path and second flow path and in ionic communication with respective first and second sides of the membrane. Furthermore, a first electrode is electrically coupled to the first catalyst on the first side of the membrane, and a second electrode is electrically coupled to the second catalyst on the second side of the membrane. In another embodiment, the power cell further includes a substrate on which the membrane is coupled.
    Type: Application
    Filed: July 1, 2013
    Publication date: March 13, 2014
    Inventor: Stephen A. Marsh
  • Publication number: 20140038074
    Abstract: A method and an apparatus of reacting reaction components. The method comprises electro-chemically reacting reaction components on opposite sides of at least one membrane with at least one catalyst encompassing a respective volume. In another embodiment, the method includes conducting electrolysis, such as electrolysis of water. The apparatus includes at least one membrane with first and second sides encompassing a respective volume. The apparatus further includes at least one catalyst coupled to the first and second sides to electro-chemically react reaction components on the first and second sides in gaseous communication with the at least one catalyst, and a cover coupled to the at least one membrane to separate flow paths on the first and second sides.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: Encite, LLC
    Inventor: Stephen A. Marsh
  • Publication number: 20130295002
    Abstract: 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. In some embodiments, the gas generator may employ a piston, rotating rod, or other element(s) to expose the chemical supply to the catalyst in controlled amounts. In another embodiment, the self-regulating gas generator uses bang-bang control, with the element(s) exposing a catalyst, contained within the chemical supply chamber, to the chemical supply in ON and OFF states according to a self-adjusting duty cycle, thereby generating and outputting the gas in an orientation-independent manner. 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: Application
    Filed: May 7, 2012
    Publication date: November 7, 2013
    Applicant: Encite LLC
    Inventors: Stephen A. Marsh, Donald M. Parker, Peter N. Pintauro
  • Patent number: 8563192
    Abstract: Among other things, a gas storage system includes a group of capsules and an activation element coupled to the group. The group of capsules are formed within a substrate and contain gas stored at a relatively high pressure compared to atmospheric pressure. The activation element is configured to deliver energy in an amount sufficient to cause at least one of the capsules to release stored gas.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: October 22, 2013
    Assignee: Encite LLC
    Inventors: Stephen A. Marsh, Donald M. Parker, William J. Grande
  • Patent number: 8518594
    Abstract: A power cell comprises a membrane with a first side and a second side. The membrane has a geometric structure encompassing a volume. The power cell also has a cover that is coupled to the membrane to separate the first flow path from the second flow path at the membrane. In the power cell, first and second catalyst is in gaseous communication with respective first flow path and second flow path and in ionic communication with respective first and second sides of the membrane. Furthermore, a first electrode is electrically coupled to the first catalyst on the first side of the membrane, and a second electrode is electrically coupled to the second catalyst on the second side of the membrane. In another embodiment, the power cell further includes a substrate on which the membrane is coupled.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 27, 2013
    Assignee: Encite, LLC
    Inventor: Stephen A. Marsh
  • Publication number: 20130134011
    Abstract: An indicator, such as an alarm or warning, is generated to indicate that a document storage cassette attached to a document handling device (e.g., a currency validator) has reached a particular capacity or is approaching its full capacity.
    Type: Application
    Filed: May 25, 2012
    Publication date: May 30, 2013
    Applicant: MEI, Inc.
    Inventors: Bob Mackenzie, Stephen Marsh, Mark H. Greenawalt, Bill Nichols, Phil Pascarella, Rick Lopez, Peter Camilleri
  • Patent number: 8431281
    Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming electronics on the substrate electronically coupled to the fuel cell that controls generation of power by the fuel cell through electrical communication with the fuel cell. 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: Grant
    Filed: July 28, 2008
    Date of Patent: April 30, 2013
    Assignee: Encite, LLC
    Inventor: Stephen A. Marsh
  • Publication number: 20120280179
    Abstract: 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. In some embodiments, the gas generator may employ a piston, rotating rod, or other element(s) to expose the chemical supply to the catalyst in controlled amounts. In another embodiment, the self-regulating gas generator uses bang-bang control, with the element(s) exposing a catalyst, contained within the chemical supply chamber, to the chemical supply in ON and OFF states according to a self-adjusting duty cycle, thereby generating and outputting the gas in an orientation-independent manner. 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: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Inventors: Stephen A. Marsh, Donald M. Parker, Peter N. Pintauro
  • Patent number: 8186672
    Abstract: An indicator, such as an alarm or warning, is generated to indicate that a document storage cassette attached to a document handling device (e.g., a currency validator) has reached a particular capacity or is approaching its full capacity.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: May 29, 2012
    Assignee: MEI, Inc.
    Inventors: Bob Mackenzie, Stephen Marsh, Mark H. Greenawalt, Bill Nichols, Phil Pascarella, Rick Lopez, Peter Camilleri
  • Patent number: 8172912
    Abstract: 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: Grant
    Filed: November 15, 2004
    Date of Patent: May 8, 2012
    Assignee: Encite, LLC
    Inventors: Stephen A. Marsh, Donald M. Parker, Peter N. Pintauro
  • Publication number: 20100159343
    Abstract: Among other things, a gas storage system includes a group of capsules and an activation element coupled to the group. The group of capsules are formed within a substrate and contain gas stored at a relatively high pressure compared to atmospheric pressure. The activation element is configured to deliver energy in an amount sufficient to cause at least one of the capsules to release stored gas.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Inventors: Stephen A. Marsh, Donald M. Parker, William J. Grande
  • Publication number: 20080292920
    Abstract: A fuel cell is disclosed which is formed on a semiconductor wafer by etching channel in the wafer and forming electronics on the substrate electronically coupled to the fuel cell that controls generation of power by the fuel cell through electrical communication with the fuel cell. 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: Application
    Filed: July 28, 2008
    Publication date: November 27, 2008
    Applicant: Encite LLC
    Inventor: Stephen A. Marsh
  • Publication number: 20080029953
    Abstract: An indicator, such as an alarm or warning, is generated to indicate that a document storage cassette attached to a document handling device (e.g., a currency validator) has reached a particular capacity or is approaching its full capacity.
    Type: Application
    Filed: May 21, 2007
    Publication date: February 7, 2008
    Applicant: MEI, INC.
    Inventors: Bob Mackenzie, Stephen Marsh, Mark Greenawalt, Bill Nichols, Phil Pascarella, Rick Lopez, Peter Camilleri
  • Publication number: 20070287043
    Abstract: A control circuit controls power generation by a power cell in a presence of fuel and oxidant through electrical control. The control circuit may be extended to an array of power cells or array of banks of power cells to configure the cells or banks in series-row and column combinations to generate power in a selectable manner. The controller may include basic power maintenance and control of the array of power cells, and high level control modules may provide unique power generation control to cause the array to cold start, output time-varying waveforms, output multiple DC voltages from a single source of energy, regulate voltage or current, and so forth. Because the power cells may be configured in vast arrays, power cells may be connected to a group of other power cells in the array and driven with a time-varying voltage or pulse to self-clean catalyst of contaminants.
    Type: Application
    Filed: March 2, 2007
    Publication date: December 13, 2007
    Inventors: Stephen Marsh, Lawrence Hill
  • Publication number: 20070251829
    Abstract: A method and an apparatus of reacting reaction components. The method comprises electro-chemically reacting reaction components on opposite sides of at least one membrane with at least one catalyst encompassing a respective volume. In another embodiment, the method includes conducting electrolysis, such as electrolysis of water. The apparatus includes at least one membrane with first and second sides encompassing a respective volume. The apparatus further includes at least one catalyst coupled to the first and second sides to electro-chemically react reaction components on the first and second sides in gaseous communication with the at least one catalyst, and a cover coupled to the at least one membrane to separate flow paths on the first and second sides.
    Type: Application
    Filed: March 2, 2007
    Publication date: November 1, 2007
    Inventor: Stephen Marsh
  • Publication number: 20070248848
    Abstract: A power cell comprises a membrane with a first side and a second side. The membrane has a geometric structure encompassing a volume. The power cell also has a cover that is coupled to the membrane to separate the first flow path from the second flow path at the membrane. In the power cell, first and second catalyst is in gaseous communication with respective first flow path and second flow path and in ionic communication with respective first and second sides of the membrane. Furthermore, a first electrode is electrically coupled to the first catalyst on the first side of the membrane, and a second electrode is electrically coupled to the second catalyst on the second side of the membrane. In another embodiment, the power cell further includes a substrate on which the membrane is coupled.
    Type: Application
    Filed: March 2, 2007
    Publication date: October 25, 2007
    Inventor: Stephen Marsh