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:
Sep. 01, 1992
Filed:
Dec. 12, 1990
Applicant:
Inventors:
Hudson R Carter, Granville, OH (US);
Cevdet G Koksal, Alliance, OH (US);
Assignee:
The Babcock & Wilcox Company, New Orleans, LA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
25022715 ; 340577 ;
Abstract
An apparatus and method is disclosed for a fiber optic based fire detection and tracking system. An optical time domain reflectometer (OTDR) interrogates at least one optical fiber with a melting point defining a threshold temperature for fire detection. The OTDR measure the time of flight of a light pulse originating at each optical fiber input end and reflected back to determine the linear position of interruptions along an optical fiber which allows for fire detection and location.