The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1981
Filed:
Oct. 03, 1979
Abstract
A feedthrough for optical submerged repeater, in which a clad part of an optical fiber to be introduced into the feedthrough is given a metal coating; the coated part is inserted into a small-diametered metal pipe to be hermetically fixed between the optical fiber and the small-diametered metal pipe as by soft solder; and the small-diametered metal pipe is inserted into a disc sleeve to hermetically fix them as by brazing. Between the disc sleeve and a metal body housing the disc sleeve, polyethylene is molded for electrical insulation therebetween and for holding air-tightness against seawater, and at the side of the disc sleeve facing toward seawater or at both sides of the disc sleeve, an insulator of the optical fiber cable and polyethylene of the abovesaid molding are molded to be contiguous to each other. The abovementioned metal body is fixedly attached to the end face plate of the pressure resisting casing in a manner to provide an air-tight structure.