Patents by Inventor Lawrence I. Smith

Lawrence I. Smith 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).

  • Optical fibre cable
    Patent number: 5050958
    Abstract: An optical fibre cable comprising a generally non-metallic central core encased in a rigid metallic tube, at least one layer of longitudinal strength members which, or the inner one of which, overlays and is in contact with the rigid metallic tube, and a sheath overlaying the strength member layer, the layer of strength members including, in a respective gap or gaps, at least one longitudinally-welded metallic tube within which is encased at least one optical fibre.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: September 24, 1991
    Assignee: Telephone Cables Limited
    Inventors: Lawrence I. Smith, Philip A. O'Bow-Hove
  • Optical fibre cable
    Patent number: 4971420
    Abstract: An optical fibre cable especially for submarine use has a core (1) surrounded by a layer (5, 6, 7) of strength members which include both wires (6) and laser-welded metallic tubes (7) containing the optical fibers (5).
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: November 20, 1990
    Assignee: Telephone Cables Limited
    Inventor: Lawrence I. Smith