Fire extinguisher

Details Fire extinguisher Fire extinguisher

A - Human Necessities

62

C

A62C 35/00 (2006.01) A62C 13/70 (2006.01)

Patent

CA 2284511

The invention relates to a fire extinguisher comprising a receptacle containing an extinguishing agent, a holder for a propellant gas cartridge, and an actuating mechanism. A wedge-shaped security element (48) is arranged between the actuating mechanism (46) and the seat (22) of a valve controlling the release of the extinguishing agent which is impinged upon by the propellant gas. A propellant gas cartridge (18) is automatically opened by a tappet (24), located on the valve seat, when the safety element is pulled out. This ensures that the receptacle containing the extinguishing agent is impinged upon by the propellant gas cartridge (18) before the fire extinguisher is initially actuated.

Selon l'invention, dans un extincteur comportant un récipient, contenant un agent d'extinction, et un logement, destiné à une cartouche de gaz propulseur, ainsi qu'un mécanisme d'actionnement, un élément de sécurité (48) en forme de coin est placé entre l'organe d'actionnement (46) et la tige (22) d'une soupape commandant la libération de l'agent d'extinction soumis à l'action du gaz propulseur, de sorte que, lors du retrait de l'élément de sécurité, la cartouche de gaz propulseur (18) soit ouverte automatiquement au moyen d'un poinçon (24) monté sur la tige de soupape. De cette façon, il est garanti qu'avant le premier actionnement de l'extincteur, le récipient contenant l'agent d'extinction soit soumis à l'action du gaz propulseur provenant de la cartouche de gaz propulseur (18).

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