Patents Assigned to Bruce J. Oliver
  • Combination seat and seal device
    Patent number: 4611788
    Abstract: An improved integral combination seat and seal device which serves the dual function of providing a seat for a valve member and a circumferentially extending seal to prevent fluid leakage.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: September 16, 1986
    Assignee: Bruce J. Oliver
    Inventor: Jack W. Thomsen