Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-10-30
2010-06-08
Wu, Daniel (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S506000, C340S539270, C340S577000, C340S539100
Reexamination Certificate
active
07733235
ABSTRACT:
A smoke detector system employs smoke detectors that enter a “lockout period” following receipt of an alarm signal, during which time a detector will not receive a RF alarm signal and will not transmit a RF alarm signal after a certain period of time if that detector does not detect, or no longer detects, a dangerous condition. The lockout period is of sufficient duration to prevent re-transmission of a RF alarm signal by a detector even though it may have received a RF alarm signal from another detector(s). Hence, after a short period of time, no RF alarm signals will be received or transmitted and each detector resets, unless a dangerous condition is detected.
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Baker Herbert
Bridges Shawnfatee M.
Hall Derrick U.
Kindler Joseph J.
Tang Son M
Woodcock & Washburn LLP
Wu Daniel
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