Security tag, which can be fitted to an object, for signalling a

Details Security tag, which can be fitted to an object, for signalling a Security tag, which can be fitted to an object, for signalling a

1992-03-30

1995-06-06

Cuomo, Peter M.

Locks

Special application

For antitheft signaling device on protected article

292307R, 292320, 340572, 247041, E05B 6500

Patent

active

054211778

ABSTRACT:
The security tag (10) has a housing (11) and a clasp (12), which can move longitudinally therein, in the manner of a padlock. In its closed position, a piston (20), which is prestressed by a spring (21), engages into a gap or interruption (15) in the clasp (12). In order to open the clasp (12), a reduced-pressure source, which raises the piston (20), is placed onto a projection (28), so that the said piston releases the clasp (12). The use of a reduced-pressure source exacerbates the unauthorized opening of the security tag.

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patent: 4483049 (1984-11-01), Gustavsson et al.
patent: 4649397 (1987-03-01), Heaton et al.
patent: 4651136 (1987-03-01), Anderson et al.
patent: 4993245 (1991-02-01), Ott
patent: 5118148 (1992-06-01), DeLima Castro Netto

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