Patents by Inventor Douglas A. Toman

Douglas A. Toman 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).

  • Signaling and reduced torque ripple in brushless repulsion motors
    Patent number: 7166984
    Abstract: Brushless repulsion motors are presented, in which rotor coils switching signal detectors are selectively located in spaced angular relationship on the rotor and signaling sources are distributed around all or most of the stator circumference to allow looser tolerances for motor manufacturing and improved controllability of rotor coil actuation during operation. Asymmetric stator poles are also provided for brushless repulsion motors to mitigate torque ripple and vibration, in which the shape of the stator pole tips is tailored by varying the angular length of the pole section.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: January 23, 2007
    Assignee: Dynamotors, Inc.
    Inventors: William Jones, Robert G. Kilmo, Douglas A. Toman, Wyatt S. Newman