Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1988-06-23
1989-10-24
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
221 3, 340540, 340522, 340571, 340636, G08B 1314
Patent
active
048765325
ABSTRACT:
A vending machine is disclosed which is protected from theft or pilferage through an alarm device contained within the vending machine. The alarm device is mounted within the vending machine and sounds an alarm when the vending machine is moved or tilted more than a certain amount for a predetermined period of time. The alarm device is inexpensive, compact and easy to install requiring little modification to existing vending machines.
REFERENCES:
patent: 1291051 (1919-01-01), McQuarrie
patent: 1817002 (1931-08-01), Halstead
patent: 3440636 (1969-04-01), Sliman
patent: 3740648 (1973-06-01), Grotjohn
patent: 3959789 (1976-05-01), McGahee
patent: 3999178 (1976-12-01), Hamilton
patent: 4016535 (1977-04-01), Dinlocker
patent: 4297683 (1981-10-01), Roberts
patent: 4404549 (1983-09-01), Berg
Fisher/Sauls Electronics, Inc.
Swann III Glen R.
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