Patents by Inventor James Dennis Shields

James Dennis Shields 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).

  • Device and method for valve signature testing
    Patent number: 9851019
    Abstract: Systems and methods for testing a valve using valve signatures are provided. An analytical device receives a first valve signature from a portable measurement device. The portable measurement device obtains the first valve signature by causing a plurality of control signals to be applied to the valve and receiving data representing actual positions of the valve corresponding to the applied control signals. The analytical device may generate an image including a graphical representation of the first valve signature and a second valve signature that was measured prior to or after the first valve signature.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: December 26, 2017
    Assignee: Fluke Corporation
    Inventor: James Dennis Shields
  • Device and Method for Valve Signature Testing
    Publication number: 20160061349
    Abstract: Systems and methods for testing a valve using valve signatures are provided. An analytical device receives a first valve signature from a portable measurement device. The portable measurement device obtains the first valve signature by causing a plurality of control signals to be applied to the valve and receiving data representing actual positions of the valve corresponding to the applied control signals. The analytical device may generate an image including a graphical representation of the first valve signature and a second valve signature that was measured prior to or after the first valve signature.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventor: James Dennis Shields