Sprinkler status indicator

Details Sprinkler status indicator Sprinkler status indicator

2006-04-17

2009-12-15

Wu, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S686100, C340S539220, C340S577000, C340S584000

Reexamination Certificate

active

07633393

ABSTRACT:
A fire suppression valve includes an RF transmitter which transmits an indication that a closed valve has opened. The transmitter can be implemented as a passive wireless identifier tag energized by a source of wireless signals.

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