Patents by Inventor John Rolland Piper

John Rolland Piper 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).

  • Hybrid mechanical and electrical transformer monitor
    Patent number: 9046423
    Abstract: In accordance with the present invention, there is provided a hybrid mechanical and electrical transformer temperature monitor. The mechanical sensing mechanism drives mechanical switches, a local display and a sensing input to the electrical side of the monitor. The electrical portion of the temperature monitor has the ability to calculate winding temperature (with an additional current sensor), data log, actuate electrical switches and has a local display for winding temperature.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: June 2, 2015
    Assignee: Qualitrol Company, LLC
    Inventor: John Rolland Piper
  • HYBRID MECHANICAL AND ELECTRICAL TRANSFORMER MONITOR
    Publication number: 20140036958
    Abstract: In accordance with the present invention, there is provided a hybrid mechanical and electrical transformer temperature monitor. The mechanical sensing mechanism drives mechanical switches, a local display and a sensing input to the electrical side of the monitor. The electrical portion of the temperature monitor has the ability to calculate winding temperature (with an additional current sensor), data log, actuate electrical switches and has a local display for winding temperature.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 6, 2014
    Applicant: Qualitrol Company, LLC
    Inventor: John Rolland Piper