Patents by Inventor Stephen Dellinger

Stephen Dellinger 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 permanent magnet machine with reduced cogging and torque ripple and method of producing the same
    Publication number: 20050017589
    Abstract: An electrical machine comprises a stator and a rotor. The rotor includes a plurality of stator teeth and a winding with compact coils disposed on the teeth. The winding has (m) phases and (p) poles; where (m) is an integer and is greater than or equal to two; where (p) is an integer, is greater than or equal to two, and is an even number. The rotor has a magnetization pattern including a magnetization skew. In some constructions, each stator includes one or more channels along a surface adjacent to the rotor. The channels can be of various shapes including a trapezoidal shape or a curvilinear shape.
    Type: Application
    Filed: July 24, 2003
    Publication date: January 27, 2005
    Applicant: A.O. Smith Corporation
    Inventors: Dan Ionel, Stephen Dellinger