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Two-pole powered ruggedized optical fiber cable and method and apparatus for forming the same

  • US 4,579,420 A
  • Filed: 06/16/1983
  • Issued: 04/01/1986
  • Est. Priority Date: 06/16/1983
  • Status: Expired due to Fees
First Claim
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1. An optical fiber cable for use in communication applications, said cable comprising:

  • an inner tubular member formed from a first metallic material having an electrical conductivity in the range of about 25% to about 102% IACS, a yield strength of at least about 30 ksi, a yield strain in the range of about 0.15% to about 1% and a minimum tensile strength of about 45 ksi at 400°

    F.;

    at least one optical fiber housed within said tubular member; and

    an outer tubular member surrounding said inner tubular member, said outer tubular member being formed from a non-ferrous metal alloy having a yield strength in the range of about 100 ksi to about 180 ksi and a yield strain in the range of about 0.57% to about 1%,whereby said outer tubular member acts as the primary strength member of said cable.

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