Fire protection system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 27, 1994
Issued Date -
N/A
app pub date -
May 28, 1993
filing date -
Sep 5, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A a fire protection system controls terminal units, or devices which are connected to the terminal units, according to a predetermined control command through control circulars provided at the terminal units. The terminal units have timer circuits which work a predetermined timing operation in response to reception of the control command, whereby the terminal units or the devices to be controlled are controlled during the time interval determined by the timing operation.
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Family
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Cited Art Landscape
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