Patents by Inventor Howard Stimson Travis

Howard Stimson Travis 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).

  • Patent number: 7348092
    Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. This avoids the difficulty, labor intensive cost and complexity of manually assembling many individual gaskets into complex groove shapes and the like. The seal material can be selected to be comparable with a wide variety of gases, liquid coolants and the like.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: March 25, 2008
    Assignee: Hydrogenics Corporation
    Inventors: David G. Frank, Joseph Cargnelli, Lawrence Eugene Frisch, William Gordon Bradford, Myron Timothy Maxson, Brian Jeffery Swanton, Howard Stimson Travis
  • Patent number: 7210220
    Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. This avoids the difficulty, labor intensive cost and complexity of manually assembling many individual gaskets into complex groove shapes and the like. The seal material can be selected to be comparable with a wide variety of gases, liquid coolants and the like.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: May 1, 2007
    Assignee: Hydrogenics Corporation
    Inventors: David G. Frank, Joseph Cargnelli, Lawrence Eugene Frisch, William Gordon Bradford, Myron Timothy Maxson, Brian Jeffery Swanton, Howard Stimson Travis
  • Patent number: 7138202
    Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. This avoids the difficulty, labor intensive cost and complexity of manually assembling many individual gaskets into complex groove shapes and the like. The seal material can be selected to be comparable with a wide variety of gases, liquid coolants and the like.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 21, 2006
    Assignee: Hydrogenics Corporation
    Inventors: David G. Frank, Joseph Cargnelli, Lawrence Eugene Frisch, William Gordon Bradford, Myron Timothy Maxson, Brian Jeffery Swanton, Howard Stimson Travis
  • Patent number: 6852439
    Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. This avoids the difficulty, labor intensive cost and complexity of manually assembling many individual gaskets into complex groove shapes and the like. The seal material can be selected to be comparable with a wide variety of gases, liquid coolants and the like.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: February 8, 2005
    Assignees: Hydrogenics Corporation, Dow Corning Corporation
    Inventors: David G. Frank, Joseph Cargnelli, Lawrence Eugene Frisch, William Gordon Bradford, Myron Timothy Maxson, Brian Jeffrey Swanton, Howard Stimson Travis
  • Publication number: 20030031914
    Abstract: A sealing technique is provided for forming complex and multiple seal configurations for fuel cells and other electrochemical cells. To provide a seal, for sealing chambers for oxidant, fuel and/or coolant, a groove network is provided extending through the various elements of the fuel cell assembly. A source of seal material is then connected to an external filling port and injected into the groove network, and the seal material is then cured to form the seal. There is thus formed a “seal in place”, that is robust and can accommodate variations in tolerances and dimensions, and that can be bonded, where possible, to individual elements of the fuel cell assembly. This avoids the difficulty, labor intensive cost and complexity of manually assembling many individual gaskets into complex groove shapes and the like. The seal material can be selected to be comparable with a wide variety of gases, liquid coolants and the like.
    Type: Application
    Filed: May 15, 2001
    Publication date: February 13, 2003
    Inventors: David G. Frank, Joseph Cargnelli, Lawrence Eugene Frisch, William Gordon Bradford, Myron Timothy Maxson, Brian Jeffrey Swanton, Howard Stimson Travis