Patents by Inventor Archibald J. DeMone

Archibald J. DeMone has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heated pressure transducer assembly
    Patent number: 5625152
    Abstract: The disclosed heated pressure transducer includes an external enclosure, a first thermal shell housed within the external enclosure, and a sensor housed within the first thermal shell. The transducer further includes a heater for heating the first thermal shell and a control unit for controlling the heater. A tube couples the sensor to a source of heated, pressurized gas and the transducer may further include a tube-heater that is controlled by the control unit for applying heat to the tube. The transducer may also include a second thermal shell housed within the external enclosure with at least a portion of the control unit being housed within the second thermal shell. A heater that is controlled by the control unit may be disposed proximal to the second thermal shell for heating that shell. An auxiliary heater disposed within the first thermal shell for heating the sensor may also be included. Two thermistors may also be included for measuring the temperature of the sensor and the first thermal shell.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: April 29, 1997
    Assignee: MKS Instruments, Inc.
    Inventors: Robert C. Pandorf, Archibald J. DeMone, Frank W. Thomas, Steven D. Blankenship