Patent ID: 6637519
Filing Date: 2003-10-28
Classification: A62C

Abstract:
A system for extinguishing a fire, the system comprising:a source of a substance which is usable to extinguish a fire in a prescribed area; a control system which has (a) a first state in which the substance from the source is prevented from being released to the prescribed area and (b) a second state wherein the substance from the source is permitted to be released to the prescribed area to extinguish or control a fire at or adjacent to the prescribed area; and an activation system comprising a first ignition element which ignites in response to exposure to at least one of (a) a flame, (b) heat above a predetermined temperature, and (c) a product of combustion, the control system changeable from the first state into the second state as an incident of the ignition element being ignited, wherein there is a conduit which has a passageway in which pressure is generated by ignition of the first ignition element and which causes the pressure responsive switch to change from the normal state into the activated state; and a shutoff for selectively blocking the passageway between the first ignition element and pressure responsive switch to disable the activation system.