Security device for merchandise and the like

Details Security device for merchandise and the like Security device for merchandise and the like

1993-12-28

1996-10-01

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340687, G08B 1314

Patent

active

055614175

ABSTRACT:
An electronic security system for monitoring merchandise sounds an alarm when a change in the state of the sensors or the electrical connections is detected. The system eliminates the need for shunt plugs and other extraneous components in favor of a self-contained solid state electronic circuit. The security system includes a lid which deactivates the alarm when the lid is open. When the lid is closed, the alarm is activated and physical tampering with the electrical connections.

REFERENCES:
patent: 3127597 (1964-03-01), Lewin et al.
patent: 3253270 (1966-05-01), Downer
patent: 3596265 (1971-07-01), Garland
patent: 4293852 (1981-10-01), Rogers
patent: 4620182 (1986-10-01), Keifer
patent: 4746909 (1988-05-01), Israel et al.
patent: 5066942 (1991-11-01), Matsuo
patent: 5153567 (1992-10-01), Chimento
patent: 5172098 (1992-12-01), Leyden et al.
patent: 5345220 (1994-09-01), Wachsman

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