Patents Assigned to Safe-T-Quake Corporation
  • Pressure control for earthquake sensitive shut-off valve
    Patent number: 4889150
    Abstract: A pressure control for a shut-off valve, preferably an earthquake sensitive shut-off valve, and a control for closing the valve in response to regulated pressure failure in the pressure supply of gas or the like thereto, and including a meter means or the like upstream, the control sensing pressures both upstream and downstream for its operation, for protecting downstream appliances and apparatus.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: December 26, 1989
    Assignee: Safe-T-Quake Corporation
    Inventors: Hershall E. Lloyd, Monte E. Lloyd