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:
Jan. 20, 1987
Filed:
Jan. 16, 1986
Joseph P Gillis, Westboro, MA (US);
Norval M Jess, Wrentham, MA (US);
Kidde, Inc., Saddle Brook, NJ (US);
Abstract
A fire suppression system including a housing for receiving particulate matter and defining an inlet opening and an outlet opening, an input duct connected to the inlet opening, an air mover for forcing air through the input duct into the housing and out of the outlet openings, and filter means disposed in the housing and sealed between the inlet opening and the outlet opening so as to remove in the housing the particulate matter entrained by air entering through the inlet opening. Also included are an inlet sensor providing an inlet output signal dependent on the inlet temperature of combined gas and particulate matter entering the housing through the inlet opening, an outlet sensor providing a discharge output signal dependent on the outlet temperature of air discharged through the outlet opening, and a difference circuit receiving the inlet and discharge output signals and providing a difference signal in response to a predetermined minimum difference therebetween. A detector provides a detection signal in response to the presence of combustion products within the enclosure and a control circuit responds to the difference signal by deactivating the air mover and responds to the detection signal by activating an actuator to release a fire extinguishing agent into the housing.