Fire extinguisher having a heat fusible member under compression

Details Fire extinguisher having a heat fusible member under compression Fire extinguisher having a heat fusible member under compression

1979-07-11

1981-11-10

Spar, Robert J.

Fire extinguishers

Special applications

Condition responsive control

169 9, 169 26, 169 42, 169 85, A62C 3502, A62C 3730

Patent

active

042992893

ABSTRACT:
The present invention relates to a fire extinguisher which comprises vessels (1, 18)filled with a fire extinguishing solution, an actuating element that breaks the vessels to eject the solution due to the occurance of fire. The actuating element is retracted against the force of a spring by a holder which is locked by a set screw (41) for exerting a pressure thereto through a heat fusible element (42) for fire detection so that the heat fusible element (42) is placed perpetually under compression. Since the heat fusible element (42) is normally subjected to compression, the element is less liable to deterioration with time.

REFERENCES:
patent: 1263291 (1918-04-01), Schultz
patent: 2585039 (1952-02-01), Roore
patent: 2674324 (1954-04-01), Mascarini
patent: 2684180 (1954-07-01), Allen
patent: 2819764 (1958-01-01), Anthony, Jr.
patent: 3768567 (1973-10-01), Weise

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