Patents by Inventor Christopher E. Cooper

Christopher E. Cooper 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).

  • Gate valve
    Patent number: 7100893
    Abstract: A gate valve having a polymeric monolithic liner, the liner having cylindrical flange portions projecting from either side to form a fluid passageway through the liner, first and second housing portions forming a liner cavity, the liner being disposed in the liner cavity, a first face ring having a first cylindrical tubular portion and a first radially outwardly projecting, annularly extending face ring flange, the first tubular portion being received in the first annular flange portion of the liner, a second face ring having a second cylindrical tubular portion and a second radially outwardly projecting, annularly extending face ring flange, the second tubular portion being received in the second annular flange portion and a gate valve element slidably received in a valve element cavity formed in the liner.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 5, 2006
    Assignee: Tyco Flow Control, Inc.
    Inventors: Nicholas J. Williams, Christopher E. Cooper, Lawrence J. Burrow, Joanne L. Dickson