E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
340/102, 342/40,
E05F 15/10 (2006.01) E05F 15/00 (2006.01) E05F 15/16 (2006.01) E06B 9/68 (2006.01) H04B 3/00 (2006.01) H04B 10/00 (2006.01)
Patent
CA 1147441
ABSTRACT OF THE DISCLOSURE A garage door operation control apparatus comprises a door operating system for opening and closing the main door of a garage, a main detection circuit for detecting the open or closed condition of the main door, an auxil- iary detection circuit for detecting an open condition of a window or an auxiliary door of the garage, a fire in the garage or generation of a special gas therein, an alarm and a signal processing circuit. Electrical signals from the detection circuit are logically analyzed thereby to control the door operating system and the alarm.
349938
Matsuoka Shigeru
Nakamura Kenji
Suzuki Mituo
Tokunaga Takeshi
Yonekura Seiji
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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