Patents by Inventor Ronald L. Upton

Ronald L. Upton 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).

  • Rotary seal for EMI-impermeable enclosure
    Patent number: 6528720
    Abstract: In an enclosure having an interface between a fixed portion and a movable portion, an EMI seal mechanism comprises a support mechanism coupled to one of the fixed portion and the movable portion. The support mechanism is positionable from an electrically non-conductive position to an electrically conductive position, wherein the electrically conductive position provides a substantially continuous electrical connection through the enclosure.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: March 4, 2003
    Assignee: Unisys Corporation
    Inventors: Johan P. Bakker, Sammy C. Hutson, Ronald L. Upton