Patents by Inventor Leonard J. Charlebois

Leonard J. Charlebois 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).

  • Telecommunications cable with grounding installations at spaced intervals and method of making same
    Patent number: 4255609
    Abstract: A telecommunications cable provided with an electrically conductive adaptor for grounding purposes. The adaptor is factory fitted to the cable shield and an electrically insulating encapsulation extends around the adaptor and cable in the vicinity of the adaptor while rendering the adaptor accessible from outside for connection of a grounding extension. In practice, a cable is provided with a plurality of spaced adaptors along its length. Field splicing is eliminated with use of the construction for aerial cable and aerial installation is simplified and made cheaper.
    Type: Grant
    Filed: December 18, 1979
    Date of Patent: March 10, 1981
    Assignee: Northern Telecom Limited
    Inventors: Leonard J. Charlebois, James K. Kho
  • Telecommunication cable splices
    Patent number: 4152539
    Abstract: The invention provides an air tight and water tight seal around a telephone cable that has been opened and has a number of pairs selected and spliced to wires or cables exiting from the splice. The seal extends over and around the cables exiting from the spliced joint. This is accomplished by encapsulating the cable with a molten material which seals to the cable sheaths.
    Type: Grant
    Filed: October 21, 1977
    Date of Patent: May 1, 1979
    Assignee: Northern Telecom Limited
    Inventors: Leonard J. Charlebois, Terence A. Ashby