Patents by Inventor Lawrence A. Shewell

Lawrence A. Shewell 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).

  • Apparatus and method for determining a differential pressure with respect to a remote site
    Patent number: 6205860
    Abstract: A method of measuring the differential pressure of two fluid pressure sources includes connecting a manometer having a wireless transceiver for transmitting measured pressures to a remote location and connecting a second manometer to a second pressures source. The second manometer then is operable calculate differential pressure value based upon the measured and electromagnetically transmitted fluid pressure value. If two remote manometers are used and are both transmitting their measured fluid pressure values electromagnetically, the second manometer is operable to determine a differential fluid pressure for the two fluid whose pressures were electromagnetically transmitted. An apparatus includes a manometer having a electromagnetic transceiver for transmitting and receiving fluid pressure measurements.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: March 27, 2001
    Assignee: Advanced Micro Devices
    Inventors: Randall T. Hooper, Garret Eugene Johnson Smith, Lawrence A. Shewell