Patents by Inventor Robert M. Koehl

Robert M. Koehl 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).

  • Publication number: 20080131291
    Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventor: Robert M. Koehl
  • Publication number: 20080131295
    Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventor: Robert M. Koehl
  • Publication number: 20080131289
    Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventor: Robert M. Koehl
  • Publication number: 20080131286
    Abstract: A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventor: Robert M. Koehl