Window alarm employing a releasably mounted plunger switch

Details Window alarm employing a releasably mounted plunger switch Window alarm employing a releasably mounted plunger switch

1977-06-10

1979-04-10

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6193, 340546, G08B 1308

Patent

active

041491564

ABSTRACT:
A plunger switch is releasably held against the inner surface of the outer section of a double-hung window or sliding door; by a suction cup, in an exemplary embodiment. Movement of the inner section with respect to the outer section dislodges the suction cup, releasing the switch and allowing it to close. Closure of the switch actuates a signalling means to generate an alarm signal.

REFERENCES:
patent: 3175207 (1965-03-01), Hewitt, Jr.
patent: 3409886 (1968-11-01), Davis et al.
patent: 3594763 (1971-07-01), Peek
patent: 3641540 (1972-02-01), Cutler et al.
patent: 3797005 (1974-03-01), Schwarz
patent: 4023156 (1977-05-01), Galvin

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