Patents Assigned to Wheatley Pump and Valve, Inc.
  • Check valve hanger mechanism
    Patent number: 4842014
    Abstract: The invention disclosed herein relates to a check valve clapper hanger mechanism from which a check valve clapper may be rotatably suspended in a check valve housing. The check valve clapper hanger mechanism is easily removable from the check valve housing and is capable of maintaining proper alignment of the clapper during normal operation of the check valve.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: June 27, 1989
    Assignee: Wheatley Pump and Valve, Inc.
    Inventors: John L. Strelow, Robert I. Clarkson
  • Check valve actuator
    Patent number: 4669500
    Abstract: The invention disclosed herein relates to a check valve actuator for opening and closing a check valve, utilizing system pressure. The check valve actuator is comprised of a piston connected to a clapper assembly by a connecting rod. The piston is slideably received in a piston cylinder containing a control valve and a latching stem. A protective cage and a protective cover are mounted over the piston cylinder.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: June 2, 1987
    Assignee: Wheatley Pump and Valve, Inc.
    Inventor: John L. Strelow