Security tag, which can be fitted to an object, for signalling an attempted theft
First Claim
Patent Images
1. A security arrangement which includes a tag which can be connected to an object to signal a theft or attempted theft comprising:
- a tag having a housing including a signalling device therein;
a first fastening part movable relative to said housing between a first part fastened position and a first part unfastened position;
a second fastening part movable relative to said housing between a second part fastened position and a second part unfastened position; and
locking means for locking said first fastening part and said second fastening part in the respective first part fastened position and second part fastened position; and
an unlocking device for unlocking said locking means to thereby allow said first fastening part and said second fastening part to be moved to the respective first part unfastened position and the second part unfastened position, and wherein said unlocking device includes means for generating a vacuum.
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0 Petitions
Accused Products
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.
95 Citations
26 Claims
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1. A security arrangement which includes a tag which can be connected to an object to signal a theft or attempted theft comprising:
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a tag having a housing including a signalling device therein; a first fastening part movable relative to said housing between a first part fastened position and a first part unfastened position; a second fastening part movable relative to said housing between a second part fastened position and a second part unfastened position; and locking means for locking said first fastening part and said second fastening part in the respective first part fastened position and second part fastened position; and an unlocking device for unlocking said locking means to thereby allow said first fastening part and said second fastening part to be moved to the respective first part unfastened position and the second part unfastened position, and wherein said unlocking device includes means for generating a vacuum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A security arrangement which includes a tag which can be connected to an object to signal a theft or attempted theft comprising:
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a tag having a housing including a signalling device therein; a first fastening part movable relative to said housing between a first part fastened position and a first part unfastened position; a second fastening part movable relative to said housing between a second part fastened position and a second part unfastened position; and locking means for locking said first fastening part and said second fastening part in the respective first part fastened position and second part fastened position; and an unlocking device for unlocking said locking means to thereby allow said first fastening part and said second fastening part to be moved to the respective first part unfastened position and the second part unfastened position, wherein said unlocking device includes a lever coupled to a piston, said piston disposed within a cylinder, and wherein a piston rod is connected to said piston and includes an opening extending through said piston rod with said opening including first and second outlets, said first outlet disposed on one side of said piston such that upon movement of said piston by said lever a reduced pressure is generated on said one side of said piston by increasing a spacing between said piston and an end of said cylinder, said second outlet of said piston rod communicating with an outlet of said unlocking device, and further wherein said locking means includes piston means which release said locking means upon application of a vacuum by said unlocking device.
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13. An unlocking device for unlocking a theft detecting assembly comprising:
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an actuator; a piston coupled to said actuator such that movement of said actuator causes movement of said piston; a cylinder including a chamber, said piston disposed inside of said chamber; and a piston rod having a passage extending therethrough, and having first and second outlets in communication with said passage, and wherein a first of said outlets is disposed adjacent one side of said piston such that as said piston is moved by said actuator a pressure change is generated in said cylinder and said pressure change is transmitted through said piston rod by way of said passage. - View Dependent Claims (14, 15)
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16. A security arrangement comprising:
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a security tag having a housing with a signalling device disposed therein; a fastening part movable relative to said housing between a fastening position and a non-fastening position; a locking device connected to said housing for locking said fastening part in said fastening position, said locking device including means for releasing said fastening part from said fastening position upon application of a reduced pressure; and an unlocking device including means for generating a reduced pressure.
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17. A security assembly comprising:
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a tag having a housing with a signalling device connected to said housing; a C-shaped fastener part having first and second ends separated by an opening thereby providing said C-shape, said C-shaped fastener part movable relative to said housing between fastened and unfastened positions, wherein in said fastened position, said opening is disposed inside of said housing and in said unfastened position said opening is disposed outside of said housing; a locking device including a movable member which is movable between a locking position and a release position, wherein when said C-shaped fastener part is in said fastened position and said movable member is in said locking position said movable member prevents movement of said C-shaped fastener part, and in said release position said movable member allows movement of said C-shaped part to said unfastened position; wherein said movable member is a piston, said locking device further including a spring biasing said piston toward said locking position and wherein said piston of said locking device is at least partially disposed in a chamber such that upon application of a reduced pressure to said chamber, said piston is moved to said release position. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A security assembly comprising:
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a tag having a housing with a signalling device connected to said housing; a C-shaped fastener part having first and second ends separated by an opening thereby providing said C-shape, said C-shaped fastener part movable relative to said housing between fastened and unfastened positions, wherein in said fastened position, said opening is disposed inside of said housing and in said unfastened position said opening is disposed outside of said housing; a locking device including a movable member which is movable between a locking position and a release position, wherein when said C-shaped fastener part is in said fastened position and said movable member is in said locking position said movable member prevents movement of said C-shaped fastener part, and in said release position said movable member allows movement of said C-shaped part to said unfastened position; the assembly further including a pin fastener member, said housing including an aperture for receiving said pin fastener member, a pin engaging member disposed inside of said housing for holding said pin fastener member in said aperture of said housing, and wherein said pin engaging member is located at a position in said housing such that when said C-shaped fastener part is in the fastened position said pin engaging member cannot move to release said pin fastener member such that said pin fastener member is locked to said housing, the assembly further including a leaf spring disposed between said C-shaped fastener part and said pin engaging member, and wherein said pin engaging member is mounted to said leaf spring; wherein said pin fastener member includes grooves formed thereon which are engaged by said pin engaging member.
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Specification