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Hybrid coaxial-optical cable and method of use

  • US 4,695,127 A
  • Filed: 03/27/1985
  • Issued: 09/22/1987
  • Est. Priority Date: 03/27/1985
  • Status: Expired due to Fees
First Claim
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1. A hybrid cable of substantially uniform cross section throughout its length for concurrently carrying an electrical signal which does not carry confidential information and an optical signal which does not carry confidential information, said cable comprising:

  • a metallic conductor disposed at the center of the cable for carrying said electrical signal,a resilient buffer tube,an optical conductor for carrying said optical signal disposed inside said tube and having an outside diameter smaller than the inside diameter of said tube, said optical conductor being movable inside said tube,a metallic shield surrounding said metallic conductor and said tube,centering means for maintaining said metallic conductor and said shield coaxial, andan electrically insulative resilient outer jacket whereby said cable gives the appearance of and taps as a conventional coaxial cable, but additionally can transmit an optical signal.

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