Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1998-07-17
1999-09-28
Cronin, Stephen K.
Bottles and jars
Closures
Having warning means or means impeding closure removal
215302, 220230, 220284, B65D 5502
Patent
active
059573139
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention concerns a theft preventing device, for an article having an essentially cylindrical end with an essentially annular swelling, for example, a bottle or a flask. Such a device is intended to prevent theft from shelves, or to prevent access by unauthorized individuals to dangerous, expensive, or toxic products.
DESCRIPTION OF THE PRIOR ART
In the state of the art, different solutions to protect such articles are known. A first solution, disclosed in French Patent No. 8,615,285 consists of a collar which is integrally connected to a locking plate. This collar forms a loop which can be tightened so that it firmly holds the neck of the bottle. The locking in the narrowed position is ensured by a magnetic lock.
A variant of this solution is described in French Patent No. 9,305,159. The device disclosed in this document concerns a clamp that can be placed around the neck of the bottle and locked in the closed position.
These devices of the prior art also include a component which is capable of interacting with a terminal located at the exit of the buying area. When an article having a theft preventing device is detected by such a terminal, it triggers an alarm signal. Theoretically, only the cashier is able to remove the theft preventing device from the article. In practice, the effectiveness of the devices of the prior art is limited. Indeed, their design results in parts which can be used as a lever arm or they provide a hold which makes it possible, without too much difficulty, to obtain a separation from the bottle. Moreover, the protection means are directly visible and, therefore, it is very easy for a dishonest person to understand how the locking is achieved and to defeat it.
In the state of the art, means for locking bottles, which consist of safety stoppers, have also been proposed.
UK Patent No. 677,311 discloses such a stopper, comprising hooks which are locked by a movable ring. This ring is mechanically locked, and it requires the use of a key to authorize the release of the stopper. This solution does not present a great degree of security because the mechanical locking means provides no resistance against a dishonest person, even if that person has little dexterity, unless a true lock is used, whose cost makes it poorly suited for use in large scale production.
Another patent published in France under FR 2,696,999 describes a locking device comprising locking elements which can be released by the axial displacement of a magnetic core which is controlled by the action of an identification code detector. Such a device is adapted to small-scale production, but not for the systematic security for mass market products. In this case, the margins and unit prices are low which does not make it possible to devote large budgets to security equipment.
The purpose of the invention is to propose a locking device which is resistant to theft, whose manufacturing cost is low, and whose deactivation is very simple and rapid for an authorized operator.
SUMMARY OF THE INVENTION
The purpose of the present invention is to overcome the aforementioned drawbacks by proposing a device which guarantees better resistance to unauthorized unlocking. Another purpose of the invention is to make the contents of a bottle inaccessible when the device is in place, in particular, by preventing the withdrawal of the stopper.
For this purpose, the device according to the invention comprises a removable body comprising a means which is capable of firmly holding, in the closed position, the cylindrical end and a locking means to prevent the opening of said holding means without the use of a specific tool, characterized in that the body comprises an essentially tubular element having a diameter which is larger than the diameter of the annular swelling which has a device which can be moved with respect to the tubular element between a closed position in which it delimits a section which is less than the section of the annular swelling and an unlocked position in which it delimits a secti
REFERENCES:
patent: 2565891 (1951-08-01), Sherman
patent: 3025990 (1962-03-01), Pancrazi
patent: 3961721 (1976-06-01), Gordon et al.
patent: 5405037 (1995-04-01), Piron
Cronin Stephen K.
Feit Irving N.
Fors France S.A.
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