WO1992007159A1

WO1992007159A1 - An apparatus for dispersing a dye over securities in a closed space at attempts at burglary

Info

Publication number: WO1992007159A1
Application number: PCT/DK1991/000306
Authority: WO
Inventors: Eddie Lai Stenild
Original assignee: Eddie Lai Stenild
Priority date: 1990-10-10
Filing date: 1991-10-08
Publication date: 1992-04-30
Also published as: DK244990D0; AU8721391A; DK165915B; DK244990A; DK165915C

Abstract

ahe apparatus comprises a profiled housing (1) forming an elongated flat capsule which contains a bag (11) with a dye (12). Concurrent ignition of two explosive charges (9) in either side of the capsule causes the bag (11) to be compressed so that it will burst, and the dye (12) is pressed out through a longitudinal slot (2) which is usually closed along a rupture indication (3) until the explosive charges (9) are ignited.

Description

AN APPARATUS FOR DISPERSING A DYE OVER SECURITIES IN

A CLOSED SPACE AT ATTEMPTS AT BURGLARY.

The present invention relates to an apparatus for dispersing a dye over securities kept in a closed space, at attempts to steal from the space, said apparatus comprising a profiled housing which forms an elongated chamber having in one wall thereof a centrally disposed slot or rupture indication line extending substantially over the entire length of the housing which contains a bag which, by activation of an explosive charge, is compressed and will burst opposite to the slot in a way so that the dye is ejected at valuables kept in the space.

An apparatus of this kind for marking bank notes or other articles of value is known from US Patent No.4,607,579, wherein an elongated profiled housing contains a pressure rail which by ignition of an explosive charge is pressed upwards and against a dye bag, which results in that the bag will burst and the dye through a slot in the bottom of a tray will be ejected at the bank notes placed at the tray. This apparatus has proved to be extremely suitable for use in a trunk for transportation of bank notes and for installation in larger spaces, e.g. safe-deposit boxes. However, since there is a still growing need for having such devices mounted in very small spaces of low installation heights, e.g. money dispensers, so-called minibanks or small cassettes, and since the known apparatus is too bulky for this use, it is the object of the invention to develop an apparatus of the kind in question, which is capable of making attempts to break open or stealing small containers for valuables in vain.

The apparatus according to the invention is characteristic in that the profiled housing is formed as a flat capsule having relatively narrow side and end walls and two broad opposed chamber walls, in one of which the slot is formed, and that the bag in all essentials fills up the entire chamber and lies close to the chamber walls and to longitudinal powder-room walls arranged in either side of the capsule and separating the chamber containing the bag from an explosive-charge chamber comprising an explosive charge and an igniter in either side of the capsule.

The capsule of low installation height is universally applicable for mounting in small cassettes and similar small spaces, and the explosive-charge chambers along both sides of the bag containing the dye are capable of producing an improved blast wave from both sides through the entire small space and, therefore, an effective^* uniform compression of the bag and ejection of dye through the entire length of the slot. Moreover, the use of two igniters provides a double guarantee for ignition and compresseion of the bag so that it will burst at attempted burglary.

According to the invention, each powder-room wall is preferably connected to one chamber wall along a rupture indication (weakening line) and to the opposite chamber wall by means of a hinge connection. This makes the compression take place in an advantageous two-stage process wherein in the first place the explosion in the explosive- charge chamber causes the powder-room walls to turn inwards and, in immediate continuation thereof, the blast wave travels towards the centre while driving out the dye through the burst bag and the slot.

Placing the hinge connections at the chamber wall which is provided with the slot, ensures in the best possible way that at the explosion the bag wall along this wall will fold in such a way that it will burst immediately opposite to the slot and that the slot will open when, as is the case in a preferred embodiment, it is closed along a rupture indication in the capsule wall between a pair of nozzle walls which will swing out by compression stress and, according to the invention, the edges of which facing each other may form knives cooperating to cut up the bag along the slot. An embodiment of the apparatus according to the invention will be described in the following with reference to the drawing, in which

Figure 1 shows a cross section through the apparatus, Figure 2 the apparatus immediately after the explosive charges have been ignited, and

Figure 3 a partly cut isometric partial picture of the apparatus.

As shown, the apparatus comprises a profiled housing 1 forming an elongated flat capsule having curved narrow side walls, closed end walls not shown, and two broad chamber walls 15 lying opposite to each other. Even though the capsule is shown with a smooth surface, it will be understood that normally it comprises screw grooves or similar arrangements at the outer side thereof, to be fastened at a wall, usually the upper wall of a space where the installation height is low. In the chamber wall 15 facing the space where the securities or similar articles of value are kept, a centrally situated longitudinal slot 2 is formed which, in the shown embodiment, is closed along a rupture indication 3 which is surrounded by longitudinal nozzle walls 4 swinging out upon increase of pressure, so that the slot will open.

A tubular dye bag 11 with a highly colouring liquid 12 is arranged in the chamber. The bag lies close to the broad chamber walls 15 and to two longitudinal powder-room walls 6 arranged in either side of the chamber and define this from two longitudinal explosive-charge chambers 8 containing explosive charges 9 which are ignited by igniters 10 activated through electric wires 13.

In a known manner the two igniters are activated from electric mechanisms at attempts to break open the space where the capsule is placed, or after a certain preset period of time if it is placed in a portable cassette. Moreover, in a likewise known manner the explosion may be released by water penetrating into the space or by the temperature in the space moving outside previously fixed limits.

The powder-room walls 6 are connected with the chamber wall 15 wherein the slot 2 is formed by means of a hinge connection 7 and they are connected with the opposite chamber wall 15 over a rupture indication 16.

Figure 2 shows the situation shortly after the explosive charges 9 have been ignited. It will be seen that the powder-room walls 6 are swung inwards and downwards about the hinge connections 7 and have compressed the outer edge portions of the dye bag 11 at the same time while a blast wave from either side compresses the bag which has burst opposite to the slot 2 which has opened, the nozzle walls 4 being swung downwards so that the dye liquid 12 is ejected in the subjacent spaces. At the explosion, the nozzle walls 4 rotate about profiled hinge connections 14, and their opposed edges form knives 5 cooperating to tear open the bag opposite to the slot 2.

The two-stage process wherein in the first place the powder-room walls 6 are swung downwards and the blast waves immediately thereafter travel inwards and meet at the centre over the slot 2, has appeared to bring about an extremely advantageous progressive compression of the bag and complete ejection of the entire quantity of dye contained therein. Owing to the low height of the capsule it is fit for use wherever the available installation height is low so that by means of the invention it has become possible to protect against burglary, securities or other articles of value kept in small spaces, e.g. portable cassettes and money dispensers or minibanks which are often exposed to attempts to break them open or simply dismounted and removed.

Claims

P a t e n t C l a i m s .

1. An apparatus for dispersing a dye over securities kept in a closed space, at attempts to steal from the space, said apparatus comprising a profiled housing which forms an elongated chamber having in one wall thereof a centrally disposed slot or rupture indication line extending substantially over the entire length of the housing which contains a bag which, by activation of an explosive charge, is compressed and will burst opposite to the slot in a way so that the dye is ejected at valuables kept in the space, c h a r a c t e r i z e d in that the profiled housing

(1) is formed as a flat capsule having relatively narrow side and end walls and two broad opposed chamber walls (15) , in one of which the slot (2) is formed, and that the bag (12) in all essentials fills up the entire chamber and lies close to the chamber walls (15) and to longitudinal powder- room walls (6) arranged in either side of the capsule and separating the chamber containing the bag from an explosive- charge chamber (8) comprising an explosive charge (9) and an igniter (10) in either side of the capsule.

2. An apparatus according to claim 1, c h a r a c t e r i z e d in that each powder-room wall

(6) is connected to one of the broad chamber walls (15) by means of a hinge connection (7) and is connected to the opposite chamber wall (15) along a rupture indication (16) .

3. An apparatus according to claim 2, c h a r a c t e r i z e d in that the hinge connections

(7) are situated at the chamber wall (15) in which the slot

(2) is formed.

4. An apparatus according to any of the preceding claims, c h a r a c t e r i z e d in that the slot (2) is closed along a rupture indication (3) in the chamber wall (15) between a pair of nozzle walls (4) which will swing out by compression stress.

5. An apparatus according to claim 4, c h a r a c t e r i z e d in that the nozzle walls (4) and the intermediary rupture indication (3) are formed in such a way that the edges of the nozzle walls facing each other are forming knives (5) .