Alarm system

Details Alarm system Alarm system

1981-09-03

1984-03-20

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

200 6162, 200 6171, 200 6193, 340693, G08B 1308

Patent

active

044384300

ABSTRACT:
An alarm system has its components completely concealed in the extruded framework of a window or door for actuation by a magnet mounted in a moving member with the alarm switch being a magnetically biased proximity sensor.
Latching means are provided for maintaining the switch contacts closed after being initially closed by the actuating member. The system may include a ferrous shield for insertion between the framework and window to disable the alarm system so that the window may be moved by authorized personnel.

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