Patents by Inventor Timothy J. Dinwiddie

Timothy J. Dinwiddie 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).

  • Radio frequency isolation shield having reclosable opening
    Patent number: 5422433
    Abstract: A shielding enclosure (10) shields an electronic circuit (12) from radio frequency interference (RFI) or electromagnetic interferences (EMI). The shielding enclosure is an electrically conductive polyhedron having at least one aperture (18). The enclosure has a closable member (20), which is a part of the polyhedron, arranged to enable the aperture to be opened and closed. The polyhedron can be an electrically conductive metal enclosure that covers the shielded circuit, and is mechanically and electrically attached to the circuit. The aperture has an integral flap (21) connected to the enclosure at one end (23), so that it is able to be opened and closed to reveal the shielded circuit. Any openings remaining in the polyhedron when the aperture is closed are less than or equal to 1/4 wavelength of the interfering radio frequency energy.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: June 6, 1995
    Assignee: Motorola, Inc.
    Inventors: Ruben Rivera, Timothy J. Dinwiddie
  • Vacuum gripper assembly for a robotic device
    Patent number: 5374091
    Abstract: A gripper assembly for a robotic device includes a first vacuum nozzle (260) having a gripping surface (262), and a second vacuum nozzle (270) having a gripping surface (272). The first nozzle (260) is positioned within the second nozzle (270).
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: December 20, 1994
    Assignee: Motorola, Inc.
    Inventors: Kiron Gore, Timothy J. Dinwiddie, Alan E. Clayton