Patents by Inventor W. G. Halstead

W. G. Halstead 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).

  • Cable sealing apparatus
    Patent number: 4701574
    Abstract: A cable end seal and a closure which includes the cable end seal provides a barrier for a junction against water, the junction being in a cable. First and second end seals are disposed adjacent opposite sides of the junction and palced in compression around the cable, the end seals having an outer convoluted surface which mate with a variable length convoluted tubing bridging member so as to form an environmental closure for the junction.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: October 20, 1987
    Assignee: Raychem Corp.
    Inventors: Gerlad L. Shimirak, Thomas Hunter, Martha F. Story, W. G. Halstead, Paul S. Chan, Christopher J. Swinmurn