Patents by Inventor George D. Green

George D. Green 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).

  • Double ring piston sealing arrangement
    Patent number: 4615531
    Abstract: An improved dual ring sealing arrangement (10) for a piston head (17) having at least one circumferential groove (15) formed therein, wherein the arrangement comprises a first sealing ring (13) having a recess (23) adapted to receive a protrusion (22) formed on the second sealing ring (14), whereby the respective ring gaps (20) are off-set from one another when said first and second sealing rings are joined together in a mating relationship.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: October 7, 1986
    Inventor: George D. Green