Patents by Inventor Michael K. Drum

Michael K. Drum 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).

  • Shielded coaxial cable and method of making same
    Patent number: 6384337
    Abstract: The present invention is a low cost coaxial drop cable having excellent flexibility and shielding coverage. The shielded coaxial cable of the invention includes an elongate center conductor, a dielectric layer surrounding the center conductor, an electrically conductive shield surrounding the dielectric layer, a first plurality of elongate wires surrounding the electrically conductive shield, and a protective jacket surrounding the plurality of elongate wires. The elongate wires have an elliptical cross section with a major axis to minor axis ratio of from greater than 1:1 to less than 5:1. The present invention further includes a method of making the coaxial cable of the invention.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: May 7, 2002
    Assignee: CommScope Properties, LLC
    Inventor: Michael K. Drum
  • Impact absorbing jacket for a concentric interior member and coaxial cable provided with same
    Patent number: 4731505
    Abstract: A new jacketing construction for use with coaxial cables provides an improved level of crush and impact resistance. The jacketing construction comprises a plurality of circumferentially spaced tubes each having a nonsymmetrical cross-sectional geometry such that under load, a portion of any radially transmitted force will be dissipated.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: March 15, 1988
    Assignee: General Instrument Corporation
    Inventors: Randall W. Crenshaw, Michael K. Drum