Patents by Inventor Robert Wayne Herman

Robert Wayne Herman 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).

  • Constant reluctance rotating magnetic field devices with laminationless stator
    Patent number: 5907205
    Abstract: A rotary magnetic field device for use in a dc motor or generator, or an ac motoer or generator. The device has a permanent magnet rotor, stator field windings and an outer cylindrical stator piece preferably being a continuous wire wrapping. The stator wire is magnetically permeable (silicon iron or steel). The stator wire, being transverse to the magnetic field assures low eddy current loss. The rotor is a material having a high energy product (BH.sub.max) preferably a neodymium-iron-boron compound. When used as a dc motor, the motor is characterized by exhibiting no ripple and economy of construction.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: May 25, 1999
    Inventors: Robert Wayne Herman, Timothy James Elliott