Patents by Inventor Rajindar Singh

Rajindar Singh 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).

  • Edge seal for a porous gas distribution plate of a fuel cell
    Patent number: 4450212
    Abstract: In an improved seal for a gas distribution plate of a fuel cell, a groove is provided extending along an edge of the plate. A member of resinous material is arranged within the groove and a paste comprising an immobilized acid is arranged surrounding the member and substantially filling the groove. The seal, which is impervious to the gas being distributed, is resistant to deterioration by the electrolyte of the cell.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 22, 1984
    Assignee: Engelhard Corporation
    Inventors: Haim Feigenbaum, Sheldon Pudick, Rajindar Singh