Patents by Inventor Don P. Sanders

Don P. Sanders 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).

  • Redundant level measuring system
    Patent number: 6588272
    Abstract: A redundant level measuring system comprises a chamber for fluidic coupling to a process vessel whereby material level in the vessel equalizes with material level in the chamber. A float including a magnet in the chamber rises and falls with material level in the chamber. A magnet actuated visual indicator is mounted to the chamber for indicating level of the magnet in the chamber. A measurement instrument includes a probe and a measurement circuit. The instrument is mounted atop the chamber with the probe extending downwardly into the chamber. The measurement circuit measures a characteristic of the probe representing level of the material in the chamber. A shield in the chamber isolate the float from the probe.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: July 8, 2003
    Assignee: Magnetrol International, Inc.
    Inventors: Michael J. Mulrooney, Boyce M. Carsella, Jr., Paul D. Myatt, Don P. Sanders
  • Redundant level measuring system
    Publication number: 20030037613
    Abstract: A redundant level measuring system comprises a chamber for fluidic coupling to a process vessel whereby material level in the vessel equalizes with material level in the chamber. A float including a magnet in the chamber rises and falls with material level in the chamber. A magnet actuated visual indicator is mounted to the chamber for indicating level of the magnet in the chamber. A measurement instrument includes a probe and a measurement circuit. The instrument is mounted atop the chamber with the probe extending downwardly into the chamber. The measurement circuit measures a characteristic of the probe representing level of the material in the chamber. A shield in the chamber isolate the float from the probe.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 27, 2003
    Inventors: Michael J. Mulrooney, Boyce M. Carsella, Paul D. Myatt, Don P. Sanders