Patents by Inventor Colin Edward Undery

Colin Edward Undery 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).

  • Method and apparatus for testing electromagnetic flowmeters
    Patent number: 6697742
    Abstract: An electromagnetic flowmeter is tested and calibrated in situ by measuring the impedance of the drive coil, and the isolation to ground impedance of the coil and of the flowmeter sensor electrodes. Testing is effected by portable field equipment or by a built-in test equipment facility with the flowmeter transmitter.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: February 24, 2004
    Assignee: ABB Kent-Taylor Limited
    Inventors: Bryan Raymond Franklin, Colin Edward Undery