Sprinkler head

Details Sprinkler head Sprinkler head

1976-01-19

1983-03-15

Mitchell, David M.

Fire extinguishers

Sprinkler heads

Collapsible strut

A62C 3708

Patent

active

043764657

ABSTRACT:
An improved sprinkler head for an automatic fire extinguishing system. The sprinkler head comprises a frame having a discharge orifice and a deflector spaced from the orifice. A cap normally encloses the discharge orifice and is held in place by a lever assembly. The lever assembly includes a lever having a pair of spaced side flanges and a tube extends between the flanges. Located within the central portion of the tube is a fusible element and balls are positioned in the ends of the tube on either side of the fusible element and engaged with sockets in the respective flanges. In the event the element is subjected to an elevated temperature, it will melt causing the balls to move inwardly of the tube and thereby releasing the lever assembly to open the discharge orifice.

REFERENCES:
patent: 1919508 (1933-07-01), Griffith
patent: 2165477 (1939-07-01), Griffith
patent: 2502754 (1950-04-01), Rowley
patent: 3469632 (1969-09-01), Ault
patent: 3625289 (1971-12-01), Gloeckler

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