Patents Assigned to GM Global Tehnology Operations, Inc.
  • METHOD OF COOLING STRETCH-FORMED-PART
    Publication number: 20110061406
    Abstract: One exemplary embodiment of a method includes removing an automotive part from a stretch forming machine. The method also includes spraying a coolant over at least a portion of an exterior surface of the automotive part in order to cool the automotive part to a lower temperature so that the automotive part is nonmalleable and is not as susceptible to the forces of gravity as it might otherwise be.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: GM GLOBAL TEHNOLOGY OPERATIONS, INC.
    Inventors: Richard M. Kleber, Nicholas M. Bosway
  • PASSIVATED METALLIC BIPOLAR PLATES AND A METHOD FOR PRODUCING THE SAME
    Publication number: 20090176139
    Abstract: A method including providing a substrate; treating the substrate to form a passive layer, wherein the passive layer has a thickness of at least 3 nm; and depositing an electrically conductive coating over the substrate, wherein the coating has a thickness of about 0.1 nm to about 50 nm.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 9, 2009
    Applicant: GM GLOBAL TEHNOLOGY OPERATIONS, INC.
    Inventors: Mahmoud H. Abd Elhamid, Gayatri Vyas Dadheech, Youssef M. Mikhail
  • FUEL CELL SYSTEM HAVING WATER-RETAINING MATERIAL
    Publication number: 20080107929
    Abstract: A product comprising a fuel cell stack comprising a cathode outlet, a first conduit connected to the cathode outlet and to a first housing, a water-retaining material provided in said first housing, a bypass conduit connected to the cathode outlet of the fuel cell system, and a first valve for opening and closing at least one of said first conduit and said bypass conduit.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 8, 2008
    Applicant: GM Global Tehnology Operations, Inc.
    Inventors: Reiner Wilpsbaeumer, Detlef Guenther, Remy Fontaine, Dirk Wexel