Security system for cigarette display case

Details Security system for cigarette display case Security system for cigarette display case

1992-03-20

1993-10-12

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

221 2, 221 3, 340526, 340529, 340539, G08B 2100

Patent

active

052529487

ABSTRACT:
The system includes optical detectors, a control microprocessor, and an alarm. The detectors optically detect the presence of cartons within the shelf exit openings and emit carton-present signals upon such detection. The microprocessor is responsive to the signals and activates an alarm when a preselected detector signal pattern is observed. In the preferred embodiment, the alarm patterns include four signals within 15 seconds or one signal having a duration of 6.5 seconds.

REFERENCES:
patent: 4007853 (1977-02-01), Bahneman
patent: 4358756 (1982-11-01), Morel et al.

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