Patents by Inventor Douglas E. Chase

Douglas E. Chase 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).

  • Hammer union assembly, hammer union seal therefor and method of constructing a hammer union seal
    Patent number: 8833804
    Abstract: A hammer union seal assembly, hammer union seal and method of construction thereof is provided. The method of constructing the hammer union seal includes forming an annular rubber ring having a cylindrical inner surface and a cylindrical outer surface, with the cylindrical outer surface extending between opposite corner edges. The method further includes forming an annular steel ring. Then, recessing and bonding the annular steel ring in one of the corner edges with an outer surface of the steel ring remaining exposed.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 16, 2014
    Assignee: Federal-Mogul Corporation
    Inventors: Michael J. Myers, Douglas E. Chase, Gerald A. Greca