Patents by Inventor Idwal D. L. Jones

Idwal D. L. Jones 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).

  • Buoyant cable
    Patent number: 5235137
    Abstract: A buoyant cable, particular for magnetic minesweeping applications, comprising a bundle of electrically conductive tubes (1) with an overall electrically-insulating sheath (4), the tubes providing buoyancy, strength and electrical conductivity for the cable. The sheath may have an internal reinforcing braid.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: August 10, 1993
    Assignee: Northern Telecom Limited
    Inventors: Idwal D. L. Jones, Granville Lawrence, Robert Waters
  • Optical fibre cable with crush-resistant tube
    Patent number: 4915490
    Abstract: A crush-resistant tube for a plastics packaged optical fibre (1, 2) is formed by helically stranding together five or more non-circular cross-section wires (3) which are created from circular cross-section wires during the stranding operation.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: April 10, 1990
    Assignee: STC PLC
    Inventors: Melvin M. Ramsay, Philip W. Black, Idwal D. L. Jones