Firefighter's nozzle

Details Firefighter's nozzle Firefighter's nozzle

1992-09-08

1994-01-11

Mitchell, David M.

Fire extinguishers

Fluid systems

Plural source, mixing in transit

169 52, 2394161, 239418, 2394275, A62C 3107

Patent

active

052772560

ABSTRACT:
A fire suppression nozzle device, to be used by firefighters to selectively and immediately utilize a plurality of different firefighting agents through the single nozzle when circumstances require, the nozzle including a housing having a primary conduit wherethrough water at substantially high pressure and high volume may be emitted, a secondary conduit with a venturi outlet extending into the primary conduit such that a second firefighting agent flowing through the secondary conduit will be drawn into the primary conduit as a result of a venturi effect suction for mixture with the water passing through the primary conduit and emission out an adjustable flow tip on a downstream, open end of the primary conduit, and a third conduit having a fixed emission tip and adapted to receive a high pressure flow of a third firefighting agent therethrough and out a fixed emission tip, all of the conduits including flow control valves to enable facilitated flow adjustment and utilization of a particular firefighting agent only when desired.

REFERENCES:
patent: 1362228 (1920-12-01), Cleveland
patent: 2245195 (1941-06-01), Hopkins
patent: 2271800 (1942-02-01), Meussdorffer
patent: 2307014 (1943-01-01), Becker et al.
patent: 2485723 (1949-10-01), Fitzgerald
patent: 3448809 (1969-06-01), Lambert et al.
patent: 4640461 (1987-02-01), Williams
patent: 4729434 (1988-03-01), Rohrbach

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