Patents by Inventor Robert C. Sheffield

Robert C. Sheffield 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).

  • Method of assembling an EMI shield around an electronic component
    Patent number: 5704117
    Abstract: An EMI shield for a component mounted upon a printed circuit board. The shield is an open sided box made from plastic insulating material supporting an electrically conductive shield layer. A surrounding flange is provided by the plastic at the open side of the box, the flange having a surface facing outwards in the same direction as the open side. The conductive shield layer extends onto the outward facing surface.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: January 6, 1998
    Assignee: Northern Telecom Limited
    Inventors: Henry W.C. Mok, Kevin J. Bailey, Paul A. Lindsay, Robert C. Sheffield, Michal S. Tencer