Patents by Inventor Harry R. Duer

Harry R. Duer 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).

  • Roller for optical scanner
    Patent number: 5475503
    Abstract: A rigid cylindrical roller for use in portable optical scanners. The roller includes a thinned midsection and a plurality of grooves. A plurality of compressible, surface gripping rings are fitted onto the plurality of grooves. Each surface gripping ring is held relatively immobile with respect to one another as well as to the roller. In one embodiment, the roller, the grooves, and the compressible rings are dimensioned such that in use, the surface-gripping rings are compressed inside the grooves at the points of rolling contact, permitting both the roller and the rings to come into contact with the scanned surface.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: December 12, 1995
    Assignee: Logitech, Inc.
    Inventors: Mohammad Ali-Safai, Paul Huang, Harry R. Duer
  • Magnetic resonance imaging apparatus and three-axis patient positioning assembly for use therewith
    Patent number: 4771785
    Abstract: Magnetic resonance imaging apparatus having a structure with an opening adapted to receive an object to be imaged. An object platform is provided which is sized so that it can be moved into the opening in the magnet structure. Structure is provided for supporting the platform and for moving the platform along x, y and z axes.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: September 20, 1988
    Assignee: Resonex, Inc.
    Inventor: Harry R. Duer