Patents by Inventor John J. Garner, Jr.

John J. Garner, Jr. 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).

  • Polymeric annular snubbing apparatus
    Patent number: 4480843
    Abstract: For use in hydraulic workover operations for oil and gas wells, a snubbing element is provided that is made entirely of polymeric material such as polyurethane. According to a preferred embodiment of the invention, the strength and rigidity supplied to the snubbing element in the prior art metallic support ring is now provided by molding that portion of the polymeric annular snubbing element from a polymeric material having a higher density and hardness than that of the polymeric sealing member. The polymeric annular snubbing element thus comprises a high density polymeric support member and a relatively lower density polymeric sealing member.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: November 6, 1984
    Assignee: Regal International, Inc.
    Inventors: Virgil E. Springer, John J. Garner, Jr.