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:
May. 26, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventors:
Assignee:
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
250227 ; 250577 ; 340605 ; 350 9615 ; 350 9630 ; 356 70 ;
Abstract
Leakage of a liquid may be detected in terms of the drop in intensity of light rays traveling through a light guide core or optical fiber made of glass or synthetic resins due to the adhesion of the leaked liquid to the light guide.