Patents by Inventor Mark D. Rayner

Mark D. Rayner 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).

  • Automotive restart control for submersible pump
    Patent number: 5973465
    Abstract: A method for restarting a motor of a submersible pump after a power interruption is disclosed. The system first detects when the power is turned back on to the system. A control means then samples signals sent back from the unpowered motor and determines the frequency and phase sequence of the signals. The speed and direction of operation of the motor are then determined from the determined frequency and phase sequence. A first pulse width modulation waveform is then applied to the motor matching the determined speed and direction of the motor. Finally, the output frequency of the waveform can be adjusted to adjust the speed and direction of operation of the motor until the motor reaches a desired speed and direction of operation.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 26, 1999
    Assignee: Toshiba International Corporation
    Inventor: Mark D. Rayner
  • Device user-control-interface with a detachable display
    Patent number: D574332
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: August 5, 2008
    Assignee: Toshiba International Corp.
    Inventors: Thomas J. Filban, Mark D. Rayner