Theft-deterrent device

Signals and indicators – Indicators

Patent

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Details

70 571, 116212, E05B 6500, A44B 900

Patent

active

052751228

DESCRIPTION:

BRIEF SUMMARY
FIELD OF INVENTION

The invention relates to a theft deterrent of the kind intended to be attached to a theft-attractive article in a manner such that the deterrent can only be removed from the article with the aid of a deterrent release device held in the possession of an authorized person, and such that any other form of removal will result in damage to the theft-attractive article;


BACKGROUND OF THE INVENTION

Theft deterrents of this kind are used to prevent the theft of attractive and easily carried goods from retail shops, particularly from departmental stores, for instance such goods as clothes, bags, handbags and the like, or to cause people to refrain from stealing such goods. One such known theft deterrent is intended to be attached to respective article in a manner such that the deterrent can only be removed from the article concerned with the aid of a special deterrent release device. It is assumed that a potential thief will not have access to this special release device, at least not in the place where the article is on sale. The purpose of such theft deterrents is to render the article unusable to all practical purposes should an attempt is made to remove or to force the deterrent without the aid of the special release device, either by tearing the article or by staining the article with a dye or some other appropriate staining substance contained in a fragile ampule which is broken as a result of attempting to remove the deterrent without the aid of said device.
The theft deterrent may also be augmented with an alarm system, which is triggered by a sensor arrangement located at the exits from the store in which the theft-protected article is on sale.


SUMMARY OF THE INVENTION

One object of the present invention is to provide a theft deterrent of the aforesaid kind which although being of simple construction will nevertheless function reliably and can be manufactured at low cost. This object is realized by means of an inventive theft deterrent including a frangible ampule containing a staining substance supported in a base from which projects an elongated connecting element including an abutment part located on the side of the ampule opposite to the direction of projection of the elongated connecting element, whereby upon an unauthorized attempt to remove a second element attached to the elongated connecting element, the abutment part comes into engagement with the ampule and causes it to break so as to release the staining substance.


BRIEF DESCRIPTION OF DRAWING

The invention will now be described in more detail with reference to the accompanying drawing, which illustrates an exemplifying embodiment of the invention in a much enlarged scale.
FIG. 1 is a side view of an inventive theft deterrent, wherein the article to which the deterrent is attached is indicated purely schematically;
FIG. 2 illustrates the base element of the deterrent from above;
FIG. 3 is a cross-sectional view of the base element taken on the line III--III in FIG. 2; and
FIG. 4 is a longitudinal section view in larger scale of the end part of the base element, taken on the line IV--IV in FIG. 2.


DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

The theft deterrent illustrated in FIG. 1 has two main parts, namely a base element 10 which is comprised of a plate-like part 11 and a connecting pin 12 which projects out from said plate-like part, and a locking element or head 13 which is mounted on the pin 12 and which has a flange 13A. FIG. 1 shows the theft deterrent secured to an article V which is shown schematically by a chain line, and which may be made of cloth, leather or some other fabric material, at least at the location where the theft deterrent is secured to the article.
The theft deterrent is secured to the article by inserting the pin 12 on the base element 10 through said article V at some appropriate position thereon, or by inserting said pin through a small hole pre-formed in the article, for instance through a buttonhole or a lace hole, and then attaching the head 13 to the free end of the pin 12 now

REFERENCES:
patent: 4483049 (1984-11-01), Gustavsson et al.
patent: 5031287 (1991-07-01), Charlot, Jr. et al.
patent: 5054172 (1991-10-01), Hogan et al.

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