Closure operated burglar alarm

Details Closure operated burglar alarm Closure operated burglar alarm

1978-11-06

1980-03-11

Yasich, Daniel M.

Communications: electrical

Condition responsive indicating system

Specific condition

116 86, 292262, 292DIG15, G08B 1308

Patent

active

041930673

ABSTRACT:
A burglar alarm is disclosed which detects the unauthorized opening of a door or window. The device has a longitudinally adjustable rod which extends between the burglar alarm and the moveable portion of a closed door or window. An attempt to open the door or window activates the burglar alarm causing the alarm to sound. A built in detent within the burglar alarm holds the alarm in the "on" position until manually released. A releasable locking fabric mounts the alarm to an adjacent stationary door or window frame. The alarm is readily separated by hand from the releasing locking fabric for easy opening of the door or window in the event of an emergency requiring a rapid exit.

REFERENCES:
patent: 723478 (1903-03-01), Mills
patent: 1704967 (1929-03-01), Fuller
patent: 2760460 (1956-08-01), Short
patent: 2812095 (1957-11-01), Sutherland
patent: 2870281 (1959-01-01), Mitchell
patent: 3797005 (1974-03-01), Schwarz
patent: 3921564 (1975-11-01), Murray
patent: 4059299 (1977-11-01), Huntley
patent: 4122796 (1978-10-01), Pressler et al.

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