Burglar chain alarm

Details Burglar chain alarm Burglar chain alarm

1998-12-09

2000-04-11

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

200 6162, 340548, G08B 1308

Patent

active

060492767

ABSTRACT:
An alarm and latch apparatus for a closure panel mounted within an opening perimeter of a building opening includes a closure panel link member having a link member first end mounted to the closure panel and a link member second end including a slot engaging slide; and a latch box having a slide slot with a slot end opening for receiving a portion of the slide, the latch box being mounted to the opening perimeter and containing an alarm circuit including a mechanism for alarm activation upon movement of the slide along the slide slot.

REFERENCES:
patent: 2825777 (1958-03-01), Gould
patent: 3406386 (1968-10-01), Hawkins
patent: 3714644 (1973-01-01), Hellstrom
patent: 4124847 (1978-11-01), Cashman
patent: 4191947 (1980-03-01), Bouchard et al.
patent: 4205305 (1980-05-01), Nakada
patent: 4206452 (1980-06-01), Blasucci
patent: 4233595 (1980-11-01), Landkammer

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