Fire sprinkler with cutoff valve, tamper-resistant features...

Details Fire sprinkler with cutoff valve, tamper-resistant features... Fire sprinkler with cutoff valve, tamper-resistant features...

2009-01-26

2010-12-07

Hwu, Davis (Department: 3752)

Fire extinguishers

Sprinkler heads

Shut off valve

Reexamination Certificate

active

07845425

ABSTRACT:
The present invention relates to a fire sprinkler head that once activated can be shut off via a built-in cutoff valve without requiring the flow of fire retardant in the feeding pipe to be cut off.

REFERENCES:
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patent: 2003/0010509 (2003-01-01), Hoffman
patent: 2007/0215362 (2007-09-01), Rodgers
patent: 2007/0221388 (2007-09-01), Johnson
patent: 2007/0267202 (2007-11-01), Mariller

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