Patent · US Expired

Submarine optical fiber cable with dam means

US4684213A · kind A · utility

8Cited by
5References
7Claims
0Family size

Assignees

Inventors

Key dates

Filing dateMay 14, 1984
Grant dateAug 4, 1987
Priority date
Expiry dateMay 14, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/4427
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A submarine optical fiber cable includes inner and outer dams at suitable intervals for limiting water flow in the cable. The outer dams are formed in a space between inner and outer metal tubes of a pressure resisting sheath of the cable, and the inner dams are formed in the inner tube in which an optical fiber unit is enclosed. Each dam is made of a sticky compound or a jelly of plastics resin which is loaded at the dam position. The cable is also provided with a scale which represents distance from one end of the cable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.