Service alarm monitor

Details Service alarm monitor Service alarm monitor

1999-04-22

2000-12-12

Tong, Nina

Communications: electrical

Condition responsive indicating system

Specified indicator structure

340540, 340612, 340616, 3406911, 3408154, G08B 300

Patent

active

061604860

ABSTRACT:
A system for visually indicating activation of an alarm, even if the alarm is no longer activated. The system has a moveable visual indicator having an elongated shaft with a stop at one end, the shaft extending through a guide mounted on the alarm. A magnet on the stop temporarily affixes the visual indicator to the alarm until the alarm is activated, at which time the visual indicator separates from the alarm and falls vertically to protrude from the guide, indicating that the alarm has been activated.

REFERENCES:
patent: 1216678 (1917-02-01), Ford
patent: 4841282 (1989-06-01), Reis

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