Patents by Inventor William B. Gripe

William B. Gripe 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 pressure operated indicating relay
    Patent number: 5072748
    Abstract: A fluid pressure operated indicating relay including a casing defining an interior and a valve assembly movable within the interior. The valve assembly incorporates a mechanism to prevent "bounce back" of the valve assembly after the relay has been tripped as a result of a drop of fluid pressure at the relay inlet port.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: December 17, 1991
    Assignee: Amot Controls, Inc.
    Inventors: William B. Gripe, Andrew Y. Cheng
  • Spool valve
    Patent number: 3985337
    Abstract: A spool valve having a ported valve chamber and a valve spool mounted for reciprocation therein and carrying an elastomeric seal ring in sliding engagement with the chamber wall for controlling fluid flow through the valve port in the wall, the seal ring having a torus portion and a flexible web co-functioning with the spool seal ring mounting groove to provide desired sealing and valving action.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: October 12, 1976
    Assignee: Amot Controls Corporation
    Inventors: William B. Gripe, Melvin H. Norman