A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
222/44
A62C 35/08 (2006.01) A62C 35/13 (2006.01)
Patent
CA 1319654
ABSTRACT OF THE DISCLOSURE An apparatus for the discharge of powder by a fluidic propellant is suitable for use as a fire extinguisher, the apparatus including a container wherein powder and propellant is pressurized prior to use of the apparatus. Discharge of the powder and the propellant from the. container is accomplished by means of a diaphragm in a wall of the container, there being a gas generator contained within a well of the container for providing an overpressure which, in combination with the pressure to which the propellant has been charged, fractures the diaphragm, Thereupon, the propellant and the powder exits the container in a homogeneous stream The overpressure is less than approximately 30 per cent, preferably 20 per cent of the pressure to which the propellant and the powder are subjected during a charging of the container with the powder and the propellant. The charge pressure is in the range of 400 - 600 p.s.i. so as to be many times greater than the pressure of an environment external to the container. A battery operated circuit may be connected between a fire sensor and the gas generator for activation of the generator in a modular self-contained form of fire extinguisher.
552352
Heath Richard C.
Kern Mark T.
Streater John
Heath Richard C.
Kern Mark T.
Santa Barbara Research Center
Sim & Mcburney
Streater John
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