Patents by Inventor Robert E. Giffen

Robert E. Giffen 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).

  • Magnet brake
    Patent number: 5751127
    Abstract: A magnet brake is disclosed. The magnet brake may consist of a stationary magnet assembly and a rotating magnet assembly. The opposing poles on the magnet assemblies have a mutual attraction that biases the assemblies into alignment with each other. The magnet brake may also be combined with Hall-effect switches to provide position and direction detection.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: May 12, 1998
    Assignee: Grimes Aerospace Company
    Inventors: Keith G. Austin, Jorge G. Erazo, Terence D. Kirkpatrick, Robert E. Giffen, Michael A. Forhan