Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1977-04-07
1978-09-26
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
200 6193, G08B 1308
Patent
active
041174658
ABSTRACT:
A plurality of door/cabinet separation responsive, alarm triggering switches are positioned at spaced points along the interface between the door and cabinet edge, preferably near the top and bottom of the edge opposite the hinged edge where the cabinet and door are joined. The switches are arranged in parallel with each other in a warning circuit, in such a manner that the slightest separation between the free edge of the door and cabinet at any point above or below the latch will cause one of the switches to activate the alarm system.
A circuit arming switch is activated and released responsive to a closing or opening of the fastening lever of the door to automatically arm and disarm the alarm circuit. When the door is opened or closed by an authorized person, the arming mechanism disarms or arms the system automatically. Also, the circuitry is such that once the alarm is fired, it cannot be disarmed without a special tool placed at a special location, which is not apparent to an unauthorized entrant.
REFERENCES:
patent: 2170521 (1939-08-01), Rodth
patent: 3852737 (1974-12-01), Gordon
patent: 4052718 (1977-10-01), Tucci et al.
LandOfFree
Alarm system for vending machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alarm system for vending machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alarm system for vending machines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2093101