Patents by Inventor David M. Skrzela

David M. Skrzela 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).

  • Brushless DC motor actuator having remote commutation sensing apparatus
    Patent number: 7323835
    Abstract: A brushless DC motor and Hall Effect commutation sensors are mounted on a common circuit board, and ferromagnetic elements partially embedded in the motor stator in proximity to the periphery of the rotor magnetically couple the rotor magnet to the Hall Effect sensors. Preferably, the ferromagnetic elements are embedded in the stator adjacent the radial periphery of the rotor magnet. Alternately, the ferromagnetic elements can be embedded in the stator adjacent the axial periphery of the rotor magnet.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: January 29, 2008
    Assignee: Delphi Technologies, Inc.
    Inventors: Lawrence Dean Hazelton, David M. Skrzela
  • Hall-effect device mounting for brushless motor commutation
    Publication number: 20020118014
    Abstract: An embodiment of the invention is a printed wiring board mounting structure for use in a brushless motor commutation controller. The printed wiring board includes interconnects for receiving Hall-effect sensors. The interconnects include a first set of interconnects dedicated to a first Hall-effect sensor group having a first plurality of Hall-effect sensors having a first Hall-effect sensor package. The interconnects also include a second set of interconnects dedicated to a second Hall-effect sensor group having a second plurality of Hall-effect sensors having a second Hall-effect sensor package.
    Type: Application
    Filed: July 12, 2001
    Publication date: August 29, 2002
    Inventors: Daniel A. Crawford, David M. Skrzela