Wall penetrating fire extinguishing device

Details Wall penetrating fire extinguishing device Wall penetrating fire extinguishing device

1982-06-21

1984-12-04

Kashnikow, Andres

Fire extinguishers

Apparatus which isolates flames from non-burning area

169 52, 239271, 239444, 239543, A62C 3122

Patent

active

044858779

ABSTRACT:
A wall penetrating firefighting device, usable separately or as a part of an attack fire hose nozzle assembly, for penetrating the walls of buildings or other types of barriers to extinguish fires hidden by or within the walls or barriers. The device includes an elongated tubular member that is secured to a casing having a bore therethrough and adapted to be connected to a source of fire extinguishing agent under pressure. A discharge port in the distal end of the penetration member discharges a stream of fire extinguishing agent in a direction generally transverse to the axis of the penetration member when a valve in the casing is shifted to its open position. The distal end of the penetration member is conically tapered to facilitate manually forced penetration thereof through a wall or barrier. A flow converting collar having a plurality of orifices therein may be mounted on the penetration member of the device for movement between an inoperative position spaced from the discharge port and an operative position surrounding the discharge port. When in its operative position, the collar converts the stream of fire extinguishing agent into a large ball-like pattern for protecting the user from radiant heat.

REFERENCES:
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patent: 2334395 (1943-11-01), Dowell et al.
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patent: 2675270 (1954-04-01), Clougherty et al.
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patent: 3313353 (1967-04-01), Williamson et al.
patent: 3762645 (1973-10-01), Gendron
patent: 4124077 (1978-11-01), Barge
patent: 4147216 (1979-04-01), Schnepfe, Jr. et al.

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