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. 18, 1978
Filed:
May. 20, 1977
Applicant:
Inventors:
John W Lennington, Bellville, MI (US);
Donald M Szeles, Ann Arbor, MI (US);
Assignee:
Sensors, Inc., Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250339 ; 250340 ; 250349 ;
Abstract
A discriminating fire sensor includes detecting means which discriminates between hydrocarbon fires desired to be detected and high-energy exploding rounds of ammunition without causing a hydrocarbon fire. Also, the system distinguishes between a hydrocarbon fire desired to be detected and ambient radiation in order to prevent false alarms. Circuit means coupled to the detecting means provide an output control signal for the activation of a fire suppressant only when a hydrocarbon fire is detected having predetermined properties to exclude false alarms.