Heat sensitive release devices

Fire extinguishers – Sprinkler heads – Collapsible strut

Patent

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Details

A62C 3708

Patent

active

041767195

ABSTRACT:
A heat sensitive release device, for example a sprinkler, comprises two relatively movable components, for example a yoke and valve member. A collapsible strut system is located between the relatively movable components. The collapsible strut system includes a catch element having opposed wings between which is held a heat sensitive element, for example a double ended heat sensitive cartridge. The collapsible strut system also includes a lever fulcrummed on one of the components and a strut engaged between the other component and the lever adjacent the fulcrum. The strut or the lever bears against the heat sensitive element while the lever or strut is connected to or integral with the catch element.

REFERENCES:
patent: 758522 (1904-04-01), Garrett
patent: 2502754 (1950-04-01), Rowley
patent: 3583492 (1971-06-01), Vorkapich
patent: 3625289 (1971-12-01), Gloeckler
patent: 3770063 (1973-11-01), Juliano
patent: 4029150 (1977-06-01), Goodsell, Jr.

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