Dual stage fire extinguisher

Details Dual stage fire extinguisher Dual stage fire extinguisher

1998-07-14

2000-08-01

Kashnikow, Andres

Fire extinguishers

Processes

169 26, 169 44, 169 45, 169 46, 169 54, 169 62, A62C 200

Patent

active

060952512

ABSTRACT:
A fire is extinguished and suppressed, by a dual stage fire extinguisher. In a first stage, a sufficient amount of an inerting agent is delivered to extinguish the fire. Once the fire is extinguished, in the second stage, a different amount of inerting agent is delivered to the fire to prevent its re-ignition. Since suppression typically requires less of the inerting agent than extinguishing, a reduction in the weight of the inerting agent is achieved with the dual stage process making the system particularly amenable to aircraft applications such as in an engine nacelle or cargo dry bay.

REFERENCES:
patent: 2015995 (1935-10-01), Egtvedt
patent: 3356148 (1967-12-01), Jamison
patent: 3388746 (1968-06-01), Linderberg
patent: 3584688 (1971-06-01), Duncan et al.
patent: 5188257 (1993-02-01), Plester
patent: 5393438 (1995-02-01), Fernandez
patent: 5449041 (1995-09-01), Galbraith
patent: 5909776 (1999-06-01), Stewart et al.

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