Patents Assigned to Humat, Inc.
  • Valve
    Patent number: 4093178
    Abstract: A butterfly type valve is provided with an annular sealing ring disposed in a groove in the bevelled periphery of the circular valve plate. The operating shaft is journalled in a radially disposed external boss and an operating handle having a spring biased locking plunger is secured to the shaft. A locking plate having a plurality of locking apertures is adjustably clamped to the boss for operative engagement with the locking plunger on the handle.
    Type: Grant
    Filed: March 16, 1976
    Date of Patent: June 6, 1978
    Assignee: Humat, Inc.
    Inventors: Robert T. Hughes, R. Hurley Matthews