Patents by Inventor Frank Boonstra

Frank Boonstra 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).

  • DEVICE FOR ASSEMBLING A BANDED FUEL CELL STACK
    Publication number: 20080271311
    Abstract: A device for assembling a banded fuel cell stack with at least one custom-fit band comprises a frame, a base to support the stack while assembling, a press plate that is movable toward and away from the base to compress the stack under a constant force, band folding means to fold the band around the compressed stack such that the ends of the band overlap and welding means for welding the overlapped ends of the band. A method for assembling the banded fuel cell stack with at least one custom-fit band is also described. The device can be used to fit a plurality of compression bands around the assembled stack.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 6, 2008
    Inventors: Graham E. Hill, Rae Hartwell, Paul F. Meharg, Frank Boonstra
  • DEVICE FOR ASSEMBLING A BANDED FUEL CELL STACK
    Publication number: 20070196719
    Abstract: A device for assembling a banded fuel cell stack with at least one custom-fit band comprises a frame, a base to support the stack while assembling, a press plate that is movable toward and away from the base to compress the stack under a constant force, band folding means to fold the band around the compressed stack such that the ends of the band overlap and welding means for welding the overlapped ends of the band. A method for assembling the banded fuel cell stack with at least one custom-fit band is also described. The device can be used to fit a plurality of compression bands around the assembled stack.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 23, 2007
    Inventors: Graham Hill, Rae Hartwell, Paul Meharg, Frank Boonstra
  • Device for assembling a banded fuel cell stack
    Publication number: 20060006155
    Abstract: A device for assembling a banded fuel cell stack with at least one custom-fit band comprises a frame, a base to support the stack while assembling, a press plate that is movable toward and away from the base to compress the stack under a constant force, band folding means to fold the band around the compressed stack such that the ends of the band overlap and welding means for welding the overlapped ends of the band. A method for assembling the banded fuel cell stack with at least one custom-fit band is also described. The device can be used to fit a plurality of compression bands around the assembled stack.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 12, 2006
    Inventors: Graham Hill, Rae Hartwell, Paul Meharg, Frank Boonstra