Patents by Inventor Jerry S. Roach

Jerry S. Roach 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).

  • Patent number: 5434784
    Abstract: This invention relates to an apparatus for sensing a vehicle steering wheel position. A permanent magnet target wheel having a global axial magnetic field normal to a first surface is attached to a steering shaft which is rotated by the steering wheel. Multiple regions equally spaced along a common radius on the first surface are magnetically altered and sensed by magnetically responsive sensors positioned adjacent the first radius. A single region positioned within a finite radius along a second radius on the first surface is magnetically altered and sensed by a magnetically responsive sensor positioned adjacent the second radius. The magnetic sensors are responsive to passage of the multiple regions and single region as the target wheel is rotated. Detection of each of the multiple regions corresponds to rotation of the target wheel by an incremental number of degrees.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: July 18, 1995
    Assignees: General Motors Corporation, Hughes Aircraft Company
    Inventors: John R. Bradley, Thomas A. Perry, Richard E. Teets, Martin S. Meyer, Jeffrey A. Sell, Thomas H. Van Steenkiste, Frank J. Bohac, Jr., Jerry S. Roach, Manfred W. Reissmueller, Everett K. Shelton, Dozier: James R., Hiro Yamasaki