Patents by Inventor William L. Parsons, Jr.

William L. Parsons, 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).

  • Valve closure member thrust and load compensator
    Patent number: 4146206
    Abstract: The valve closure member thrust and load compensator is applicable to butterfly valves and the like and is a mechanical arrangement which directly supports the weight of the closure member or disc and simultaneously supports the valve shaft and through means of an adjusting screw balances the load and centralizes the sealing forces within the valve body.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: March 27, 1979
    Assignee: Garlock Inc.
    Inventors: Edward D. Malloy, William L. Parsons, Jr.