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Waterproof optical cable

  • US 4,767,184 A
  • Filed: 04/07/1987
  • Issued: 08/30/1988
  • Est. Priority Date: 04/21/1986
  • Status: Expired due to Fees
First Claim
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1. A waterproof optical cable, comprising:

  • a rodlike spacer having a plurality of spiral grooves on its peripheral surface;

    stacks fitted into at least some of said grooves, each stack comprising a plurality of substantially flat optical conductors stacked together in a radial direction of said spacer and coating resin film layer containing a water swelling material coated on a surface of each of said optical conductors; and

    a water absorbent filling any of said grooves not fitted with one of said stacks.

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