Patents by Inventor Andrew T. Pattern

Andrew T. Pattern 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 operating coriolis flowmeters at cryogenic temperatures
    Patent number: 6512987
    Abstract: A Coriolis flowmeter is operated to generate accurate output material flow information over a wide temperature range that includes cryogenic temperatures. Heretofore, temperature compensation was provided using linear expressions that erroneously assumed the value of Young's Modulus E varied linearly with temperature. This resulted in unacceptable output information errors. The Coriolis flowmeter of the present invention uses non-linear compensation information stored in memory to generate accurate non-linear temperature compensated material flow output information at all temperatures including cryogenic temperatures. In one embodiment, the stored non-linear information represents measured values of Young's Modulus E that are used to generate accurate temperature compensated material flow output information.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: January 28, 2003
    Assignee: Micro Motion, Inc.
    Inventor: Andrew T. Pattern