Patents by Inventor Gayle J. Thelen

Gayle J. Thelen 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).

  • Fluid parking brake for a rail vehicle air brake cylinder
    Patent number: 6186284
    Abstract: A fluid parking brake for a rail vehicle having a brake cylinder with a first piston responsive to fluid signals to apply and release the brakes on the vehicle. The parking brake includes a housing having a second piston in the housing and which is coupled to the first piston. An apply port in the housing receives a pressure signal to move the second piston to an apply position. A detent is provided for provided for holding the second piston in the applied position.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: February 13, 2001
    Assignee: New York Air Brake Corp.
    Inventors: Jeffrey F. Sauter, Gayle J. Thelen