Adapter for burglar alarm switch

Details Adapter for burglar alarm switch Adapter for burglar alarm switch

1981-09-28

1982-09-21

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6193, G08B 1308

Patent

active

043509770

ABSTRACT:
An adapter, intended to be mounted on a door edge opposite a jamb mounted make and break switch of the push-button type, is disclosed. The adapter includes a slidable plate member and a bracket which provides a trackway for the sliding movement of the plate member between an upper position where the plate engages the push-button switch and holds it depressed when the door is closed and a lower position where the plate uncovers a push-button receiving aperture upon opening of the door so that, when the door is reclosed, the push-button enters the aperture and remains in an extended, alarm-actuating position. The adapter further includes a retaining spring which may be selectively positioned to hold the plate member in the upper position while the door is opened and released after closing.

REFERENCES:
patent: 1077877 (1913-11-01), Fitch
patent: 2150873 (1939-03-01), Schultz
patent: 2656427 (1953-10-01), Fiorucci
patent: 2786911 (1957-03-01), Morgan
patent: 2856477 (1958-10-01), Schultz
patent: 2873333 (1959-02-01), Jacaman
patent: 2875290 (1959-02-01), Shattow
patent: 3516036 (1970-06-01), Lea
patent: 3768087 (1973-10-01), Kaye et al.

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