Fire sprinklers

Details Fire sprinklers Fire sprinklers

A - Human Necessities

62

C

137/4.3

A62C 37/11 (2006.01) A62C 37/10 (2006.01) F03G 7/06 (2006.01) F16K 17/40 (2006.01) F16K 31/00 (2006.01)

Patent

CA 1299967

ABSTRACT A fire sprinkler has a flow passage for water or other extinguishing fluid closed by a frangible body, which may be a simple disc. A separate mechanism responsive to temperature-rise conditions shatters the frangible body, and the fluid then flows from the passage to impinge on a distributor (as in conventional sprinklers). The shattering mechanism is preferably actuated by a shape-memory alloy, preferably in sheet form, which can be located below the distributor for maximum exposure to radiant as well as convective heat; it can also be thermally insulated, contributing further to speed of response.

578763

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