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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.:

US 5164600 B1

PDFFull Text
Date of Patent:
Nov. 17, 1992

Filed:

Dec. 13, 1990

Device for sensing the presence of a flame in a region

Applicant:
Inventors:

Promit Das, South Bend, IN (US);

Terrance R Kinney, South Bend, IN (US);

Assignee:

Allied-Signal Inc., Morristown, NJ (US);

Attorneys:

McCormick, Jr.; Leo H.

Palguta; Larry J.

Walsh; Robert A.

Primary Examiner:

David C Nelms

Assistant Examiner:

Michael Messinger

Int. Cl.
CPC ...
G01J / ; G08B / ;
U.S. Cl.
CPC ...
250554 ; 25022723 ; 250226 ; 340578 ;
Abstract

A light off detecting arrangement for sensing the presence of a flame in a region such as the afterburner of a turbine engine is disclosed. An optical focusing device such as a lens or mirror is located near a quartz window adjacent the afterburner for concentrating electromagnetic radiation emanating from the region. An optical (fiber optic) pathway receives the concentrated electromagnetic radiation from the optical focusing device and conveys that radiation thru the optic filters to an opto-electrical converter for converting incident electromagnetic radiation to electrical signals. A frequency selective optical device such as an infrared filter is interposed between the optical focusing device and the opto-electrical converter for insuring that a preselected portion only of the electromagnetic radiation emanating from the region is converted to electrical signals. The electrical signals are compared to a predetermined threshold value and a fault flame present indication is issued if the comparison indicates sufficient radiation in the preselected portion indicative of the presence of a flame, and a second no flame indication is issued otherwise.

Find Patent Forward Citations

Das, Promit. (1992). Device for sensing the presence of a flame in a region (U.S. Patent No. 5164600). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5164600

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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