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CONNECTION OF PLASTIC PIPES WITH GROUND WIRES EMBEDDED THEREIN

  • US 3,860,742 A
  • Filed: 04/04/1973
  • Issued: 01/14/1975
  • Est. Priority Date: 04/04/1973
  • Status: Expired due to Term
First Claim
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1. An electrically conductive insulator plastic pipe system comprising:

  • a. at least two rigid adjacent tubular sections made of resin bonded glass fibers each being defined by an elongated, nonconductive wall including a central portion having axially spaced apart first and second ends;

    b. conductive wire means completely embedded within each said wall along said central portion thereof and extending between said first and second ends, said conductive wire means being exposed only proximate each said first and second ends; and

    c. external, axially elongated, annular coupling means mechanically coupling two adjacent ones of said tubular sections and electrically coupling said exposed conductive wire means to said two adjacent ends of said tubular sections, said annular coupling means extending at least partially over said two adjacent tubular sections, wherein said annular coupling means comprises an electrically conductive sleeve positioned about each said first and said second end, said conductive sleeve being in electrical contact with said exposed conductive wire means, a tubular member extending over said sleeves of said two adjacent ones of said tubular sections, and a conductor in engagement with said tubular member and said sleeves, said conductor being in electrical contact with said two adjacent ones of said sleeves whereby there is electrical continuity between said two adjacent ones of said tubular sections.

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