A - Human Necessities – 62 – C
Patent
A - Human Necessities
62
C
A62C 35/00 (2006.01) A62C 99/00 (2010.01) A62C 35/02 (2006.01)
Patent
CA 2194525
A fire suppression device includes an enclosure having opposite end walls and a side wall joining the end walls to define a hollow chamber within the enclosure. An atomizing nozzle is operatively coupled to a first of the end walls and has anentrance portion adjacent the chamber and an exit in communication with the atmosphere outside of the enclosure. A frangible barrier is interposed between the nozzleentrance portion and the chamber and is responsive to a predetermined pressure for fracturing to permit communication between the nozzle and the chamber. A piston is located between the end walls and engaged about an inner periphery of the side wall to divide the chamber into two sections. A first of these sections, between the piston and the first end wall, is filled with a quantity of water and comprises a major fractional portion of the volume of the chamber. The piston is slidably moveable relative to the side wall in the direction of the first end wall in response to a force exerted upon the piston for exerting pressure upon the quantity of water for initially fracturing the frangible barrier and for thereafter delivering a water mist through the atomizing nozzle. A gas generator communicates with the second section for delivering high pressure gas to exert the force upon the piston, causing a fine mist to flow from the nozzle. As a variation, a conduit may extend from the nozzle to the second section, and the nozzle may include venturis extending between the first section and the conduit. The generated gas will flow through the conduit to further draw the water via venturi effect.
ppareil d'extinction constitué d'un réservoir formé de deux parois d'extrémité reliées par une paroi latérale, et d'un ajutage relié à l'une des parois d'extrémité. Un opercule résistant à une pression déterminée sépare l'ajutage du réservoir. Un piston dont le bord est en contact avec la paroi latérale du réservoir sépare celui-ci en deux chambres. Celle définie par le piston et la paroi d'extrémité à laquelle est reliée l'ajutage est la plus grande et sert de réservoir d'eau. L'autre est reliée à un générateur de gaz, qui fournit un gaz sous haute pression. La pression pousse le piston en direction de la paroi opposée, provoquant la rupture de l'opercule et refoulant l'eau vers l'ajutage, qui projète alors de l'eau finement divisée. Dans une variante de cette invention, un conduit relie l'ajutage à la deuxième chambre, et un étranglement est pratiqué entre ce conduit et le réservoir d'eau, de sorte que le gaz arrivant par le conduit crée un effet d'aspiration.
Cox Matthew Alan
Hussey Brett
Letendre Guy Robert
Gowling Lafleur Henderson Llp
Morton International Inc.
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