Patents Examined by William E. Tapolce
  • Thermal relief valve
    Patent number: 5018665
    Abstract: A thermal relief valve is constructed and arranged to sense the fluid temperature of a pump and to open when this fluid temperature becomes too high to discharge pump fluid to prevent the occurrence of an excessive temperature conditon of the pump fluid.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: May 28, 1991
    Assignee: Hale Fire Pump Company
    Inventor: Michael Sulmone