Burglar alarm with re-entry feature

Details Burglar alarm with re-entry feature Burglar alarm with re-entry feature

1983-03-29

1985-09-24

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340523, 340527, 340542, 340 64, 34030915, 307 10AT, G08B 2300

Patent

active

045435685

ABSTRACT:
An "Automatic Exit Delay" circuit of a burglar alarm is placed on Stand-By whenever a "first" door is opened and the burglar alarm automatically starts to work right after the "last" door is closed. At that moment of arming a "Quiet Quick Test" Network automatically tests the alarm for proper functioning and generates a short "beep" to indicate such as well as the armed state of the alarm system.

REFERENCES:
patent: 3710317 (1973-01-01), Colsen et al.
patent: 3829829 (1974-08-01), Teich
patent: 3858175 (1974-12-01), Kopera, Jr.
patent: 3967239 (1976-06-01), Steele
patent: 4114147 (1978-09-01), Hile
patent: 4151507 (1979-04-01), Willis
patent: 4187496 (1980-02-01), Kovens et al.
patent: 4297674 (1981-10-01), Merten

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