Fire extinguisher sprinkler construction

Details Fire extinguisher sprinkler construction Fire extinguisher sprinkler construction

A - Human Necessities

62

C

A62C 35/00 (2006.01) A62C 37/14 (2006.01)

Patent

CA 2120587

Fire extinguishing sprinkler apparatus comprises a frame for connection to a source of fire extinguishing fluid and having a passage through which such fluid may flow along a path. The passage normally is sealed by a closure in contact with the fluid. The closure is maintained in its passage sealing position by a springy retainer which is held by a thermally sensitive collapsible strut in such position as to bear upon the closure. When ambient temperature rises to a predetermined level, the strut collapses enabling automatic expulsion of the closure from the passage and flow of fire extinguishing fluid through the passage. The closure is formed from material of poor thermal conductivity thereby preventing cooling of the collapsible strut by the transfer of heat from the strut through the closure to the fire extinguishing fluid in the passage.

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