Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1993-11-16
1996-08-06
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
340691, 439917, G08B 1314
Patent
active
055437826
ABSTRACT:
An electronic security system for monitoring merchandise is provided which sounds an alarm when a change in the sensors or the electrical connections are detected. The system automatically switches from a closed loop continuous current system to a closed loop battery saving pulse system during a power failure. The system also eliminates the need for shunt plugs, splitter boxes, and other extraneous components in favor of a self-contained solid state electronic circuit.
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Goldblatt Richard S.
Rothbaum Arthur H.
Mullen Thomas
Protex International Corp.
Renz Jr. Eugene E.
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