Theft preventing device

Details Theft preventing device Theft preventing device

1982-08-12

1985-10-08

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

70 18, 70DIG49, 70DIG51, 340555, 340693, E05B 4506, E05B 7300, G08B 1318

Patent

active

045463450

ABSTRACT:
A theft preventing device comprising a lock body, a cable member having one end fixed to the lock body and the other end fastenable to the lock body to bring the device into a locking position, and an alarm system contained in the lock body. The alarm system includes an alarm device, a drive circuit for the alarm device, and an inhibiting circuit for the drive circuit. The inhibiting circuit is completed by means of a light-conducting member extending through and along the cable member. Maximized alarming effects against various means of theft are achieved, and thus the device suitably prevents an object to be protected from being stolen.

REFERENCES:
patent: 3714644 (1973-01-01), Hellstrom
patent: 3772645 (1973-11-01), Odenz et al.
patent: 3824540 (1974-07-01), Smith, II
patent: 3828340 (1974-08-01), Bauer, Jr. et al.
patent: 3993987 (1976-11-01), Stevens
patent: 4057986 (1977-11-01), Zolke et al.
patent: 4262284 (1981-04-01), Stieff et al.
patent: 4399430 (1983-08-01), Kitchen

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