Patents by Inventor Graham Edward Hill

Graham Edward Hill 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).

  • Systems, apparatus and methods for isolating, compressing and/or retaining the structure of a fuel cell stack
    Patent number: 6862801
    Abstract: A receptacle having an end cap, a pliable sidewall, and a fastener, for receiving and retaining a fuel cell stack in its stacked configuration during fabrication of a multi-stack fuel cell assembly, is shown and described. Methods of fabricating the assembly include stacking the fuel cell in the receptacle, compressing the fuel cell, and engaging the fastener to retain the stack in its stacked configuration and, or to retain the stack under at least partial compression.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: March 8, 2005
    Assignee: Ballard Power Systems Inc.
    Inventors: Graham Edward Hill, Ross William Johnston Bailey, Rae Hartwell, Uwe Pfister
  • Systems, apparatus and methods for isolating, compressing and/or retaining the structure of a fuel cell stack
    Publication number: 20030104260
    Abstract: A receptacle having an end cap, a pliable sidewall, and a fastener, for receiving and retaining a fuel cell stack in its stacked configuration during fabrication of a multi-stack fuel cell assembly, is shown and described. Methods of fabricating the assembly include stacking the fuel cell in the receptacle, compressing the fuel cell, and engaging the fastener to retain the stack in its stacked configuration and, or to retain the stack under at least partial compression.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Applicant: Ballard Power Systems Inc.
    Inventors: Graham Edward Hill, Ross William Johnston Bailey, Rae Hartwell, Uwe Pfister
  • Method for compressing a fuel cell stack during assembly
    Publication number: 20030072979
    Abstract: A method useful during the assembly of fuel cell stacks having resilient seals and/or MEAs is provided. The method comprises heating fuel cells of a fuel cell stack, and applying a compressive force to the fuel cell stack.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Applicant: Ballard Power Systems Inc.
    Inventors: Graham Edward Hill, Paul F. Meharg