Cable lock system

Details Cable lock system Cable lock system

2007-08-07

2007-08-07

Hofsass, Jeffery (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S542000, C340S568100, C340S572900

Reexamination Certificate

active

11098466

ABSTRACT:
A cable alarm system is provided that includes: a lock; a cable coupled to the lock and operative to conduct a current; a secondary wire coupled to the lock and parallel to the cable and operative to conduct a current; a current detector coupled to the cable and the secondary wire, operative to detect an interruption of a current in at least one of the cable and the secondary wire; a battery operative to supply power to the current detector; an alarm coupled to the current detector and receiving power from the battery; and a heat sensor coupled to the cable and the secondary wire.

REFERENCES:
patent: 4776188 (1988-10-01), Dalabs et al.
patent: 4920334 (1990-04-01), DeVolpi
patent: 4985695 (1991-01-01), Wilkinson et al.
patent: 5408212 (1995-04-01), Meyers et al.
patent: 5815069 (1998-09-01), Horton
patent: 5889463 (1999-03-01), Judd et al.
patent: 6690267 (2004-02-01), Linden et al.

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