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http://patft.uspto.gov/ ("smoke alarm" OR "smoke detector") AND ("defeat" OR "temporarily")
Updated on 2009-05-26
Created on 2009-05-25
Category: Others
URL:
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Method and apparatus for temporary muting of smoke alarms
An alarm system comprising: at least two alarm units
To address such problems, smoke alarms have been retrofitted with a switch to temporarily deactivate the smoke alarms. These retrofitted smoke alarms require the use of a remote control, a switch, or a pull cord to turn off the smoke alarms. Examples include U.S. Pat. No. 4,313,110, U.S. Pat. No. 5,093,651, U.S. Pat. No. 5,442,336, and U.S. Pat. No. 5,815,066. ...The problem with retrofitting a smoke alarm with the switches of the prior art is that a person has to either buy a new smoke alarm or go into an existing smoke alarm and add new components. Thus, a household having several smoke alarms would require either replacing each existing smoke alarm with the new retrofitted smoke alarms or retrofitting the new components into each of the existing smoke alarms in the household. Such an endeavor can prove to be expensive. ...The present invention, however, requires a single switch.
Cites remote-controlled IR deactivators
http://www.smarthome.com/7981.html
http://www.firstalert.com/sa302/ -
Low battery warning silencing in life safety devices
a silence module configured to automatically select a random time period and to silence the alarm for the random time period
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Smoke detector with remote testing, shutoff and powering means
6,172,612
Odachowski January 9, 2001-
Wherein the improvement comprises a remote housing that
is remotely disposed from the main housing, with the remote housing having
affixed thereto a remote electrical circuit comprising a means for
receiving an electrical connection from the main electrical circuit, a
means for testing the operating condition of the main electrical circuit,
a means for shutting off the alarm device, and a remote battery coupling
means that allows a battery for powering the detector to be located in the
remote housing. -
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