Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1990-09-11
1991-11-19
Swann, III, Glen R.
Communications: electrical
Condition responsive indicating system
Specific condition
361170, G08B 1302
Patent
active
050669427
ABSTRACT:
An antitheft device for articles includes a plurality of article connection cords, a cord connection part including a plurality of terminal parts which are connected in series and are closed by the connection to the cords, respectively, and a monitor part which is connected to the cord connection part, and which is not to operate when the terminal parts are closed and which is to operate when at least one of the terminal parts opens. The antitheft device further includes an auxiliary alarm device connected to at least one of the terminal parts in the cord connection part, and a drive device for driving the auxiliary alarm device corresponding to the terminal part or parts which open when the monitor part raises an alarm. In the device, it is possible to rapidly and specifically find when an article is stolen or when an attempt to steal was made or when the article connection cord is disengaged or loosened.
REFERENCES:
patent: 3127597 (1964-03-01), Lewin et al.
patent: 3596265 (1971-07-01), Garland
patent: 4293852 (1981-10-01), Rogers
patent: 4916434 (1990-04-01), McNeely
Matsuo Sangyo Kabushiki Kaisha
Swann III Glen R.
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