Patents by Inventor Stephanie M. Law

Stephanie M. Law 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).

  • Regulator diagnostics system and method
    Patent number: 6441744
    Abstract: Apparatus for performing diagnostics through a regulator is disclosed. The pressure regulator is disposed in a fluid flow passage and has a throttling element moveable in the flow passage. A stem is attached to the throttling element. The apparatus includes a first pressure sensor for measuring pressure upstream of the throttling element, a second pressure sensor for measuring pressure downstream of the throttling element, and a travel sensor for detecting the position of the throttling element. A processor is provided which includes a stored algorithm for determining flow rate based on the measured pressure and travel values, and an alarm routine for generating logic alarms based on the measured operating parameters.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: August 27, 2002
    Assignee: Fisher Controls International, Inc.
    Inventors: Paul R. Adams, David E. Woollums, Jon B. Milliken, Richard J. Vanderah, Stephanie M. Law