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:
Jul. 12, 1977
Filed:
Mar. 28, 1975
Applicant:
Inventors:
Kaoru Ohyoshi, Hachiouji, JA;
Naoyuki Seo, Kokubunji, JA;
Assignee:
Olympus Optical Co., Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
156645 ; 65 31 ; 134-3 ; 134 28 ; 134 34 ; 156657 ; 156662 ; 427 57 ; 427163 ; 427307 ;
Abstract
A treating method for giving durability to an optical fiber bundle produced by bundling optical fibers respectively covered by acid-soluble glass, shielding both end portions thereof by acid-resisting material and dissolving and removing said acid-soluble glass at the middle portion by means of acid. That is, said optical fiber bundle is immersed in organic solvent containing antifriction agent and is subjected to ultrasonic oscillation for the purpose of removing sludge remaining in said optical fiber bundle and replacing said sludge with said antifriction agent.