Patents Assigned to Keystone Machine and Tool Co.
  • Apparatus for the measurement and control of gas flow
    Patent number: 5669419
    Abstract: An electronic gas regulator is connected to a gas cylinder or other vessel to automatically measure and control the flow of gas to a desired application. Control and set up is accomplished through microprocessor based electronics, switches, sensors, encoders, indicators and electronic numeric display. Sensors, microprocessors and other electronics are thus provided in a single common apparatus to monitor and accurately dispense gas for a predetermined operation.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: September 23, 1997
    Assignee: Keystone Machine and Tool Co.
    Inventor: Jon H. Haas