Patents by Inventor Sydney Gilbert Hodgins

Sydney Gilbert Hodgins 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).

  • Compression piston ring seal
    Patent number: 5743535
    Abstract: A sealing system for the compression ring (5) of a piston (1) of an internal combustion engine comprises placing an elastomeric material seal ring (15) behind the compression ring (5) to provide sealing to improve compression ratio and prevent loss of oil. The seal ring may be an O-ring of a neoprene/silicon blend elastomeric material of circular, U-shaped, oval, square, rectangular or trapezoidal shape, and may be hollow or solid. The seal ring may have a cross-sectional diameter of from 50% to 100% of the thickness of the compression ring (5) behind which it fits.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: April 28, 1998
    Assignee: Auto-Motive Improvements Pty Ltd.
    Inventor: Sydney Gilbert Hodgins