Sprinkler head

Details Sprinkler head Sprinkler head

1977-06-24

1979-01-16

Saifer, Robert W.

Fire extinguishers

Sprinkler heads

239 74, A62C 3708

Patent

active

041344588

ABSTRACT:
An improved sprinkler head provided with a water pressure indicator to permit a visual check to see whether or not it is supplied with water under pressure. The indicator includes a colored indicating element protruding under water pressure.

REFERENCES:
patent: 2417449 (1947-03-01), Rubin
patent: 3129689 (1964-04-01), Henderson et al.
patent: 4012960 (1977-03-01), Barbee

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