Patents by Inventor David F. Shu

David F. Shu 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).

  • RF Shielded electronic component housing
    Patent number: 4567318
    Abstract: An RF shielded housing for a signal distribution system component includes a cast metal base member which forms an interior chamber in which circuit elements of the component are contained. An access aperture is provided on one wall of the housing to facilitate installation of the circuit elements within the chamber. The access aperture is closed by a cover plate which fits over the aperture into a flange portion provided in the base member around the periphery of the aperture. A number of closely-spaced sawtooth-shaped engaging elements integrally formed in the flange portion deform the cover plate as it is press fit into position against the flange portion to form a like number of closely-spaced mechanical and electrical engagements which hold the cover securely in place and prevent RF leakage from the circuit elements within the chamber.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: January 28, 1986
    Assignee: TDS, Inc.
    Inventor: David F. Shu
  • C.A.T.V. Signal splitter
    Patent number: D261503
    Type: Grant
    Filed: April 18, 1979
    Date of Patent: October 27, 1981
    Assignee: TDS, Inc.
    Inventor: David F. Shu
  • C.A.T.V. Signal splitter
    Patent number: D264710
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: June 1, 1982
    Assignee: TDS, Inc.
    Inventor: David F. Shu
  • C.A.T.V. Signal splitter
    Patent number: D274717
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: July 17, 1984
    Assignee: TDS, Inc.
    Inventor: David F. Shu