Patents by Inventor Clarence John Zabcik

Clarence John Zabcik 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).

  • Automatic sequential dual action sealing system
    Patent number: 4106779
    Abstract: A shock absorbing subassembly with a body, a mandrel slidably and non-rotatively received in the body, dampening means therebetween, an upper seal above the dampening means and a floating seal therebelow for maintaining an oil bath between the body and the mandrel, a primary seal between the body and the mandrel below the floating seal, and a secondary seal actuated upon a predetermined magnitude of leakage past the primary seal to sequentially establish another seal between the body and the mandrel above the primary seal and below the floating seal.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: August 15, 1978
    Assignee: Nl Hycalog
    Inventor: Clarence John Zabcik
  • Automatic sequential dual action sealing system
    Patent number: 4031716
    Abstract: A shock absorbing subassembly with a body, a mandrel slidably and non-rotatively received in the body, dampening means therebetween, an upper seal above the dampening means and a floating seal therebelow for maintaining an oil bath between the body and the mandrel, a primary seal between the body and the mandrel below the floating seal, and a secondary seal actuated upon a predetermined magnitude of leakage past the primary seal to sequentially establish another seal between the body and the mandrel above the primary seal and below the floating seal.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: June 28, 1977
    Inventor: Clarence John Zabcik