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1. (WO1985004635) SELF-LOCKING PILFER PROOF TAMPER EVIDENT CONTAINER
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WE CLAIM :

1. A non-reusable self-locking container comprising:

a first panel including, a surface, side walls extending generally orthagonally from said surface, and a first tab extending generally orthagonally from said surface within said side walls, said tab defining a cam and a locking surface

a second panel including a surface, walls
extended generally orthagonally from said surface, and a second tab extending generally orthagonally from said surface within said walls, said tab defining a cam and a locking surface

said first and second cams being adapted to telescopically engage one another resiliently to flex one* away from the other

said locking surfaces being adapted for mutual engagement permanently to- lock said cams to one another

said side walls and walls being adapted to protect1 said cams and locking surfaces from disengagement

said first and second panels forming an enclosure which is permanently locked against entry upon completion of said telescoping movement, except by the permanent and visible destruction of said container.

2. ' A self-locking container according to claim 1 wherein said tabs form pins each having an inclined
surface at its distal end and a locking surface nearer its attached end, said inclined surfaces being arranged for mutual engagement during said telescoping movement to flex at least one of said inclined surfaces away from the other.

3. A self-locking container according to claim 2 wherein said locking surfaces are generally perpendicular to the planes of said side walls and said walls.

4. A self-locking container according to claim 1 or claim 2, wherein at least one of said first cam and second cam is formed of a semi-rigid material.

5. A container according to claim 1 or claim 2, wherein said first and second panels are hinged along an axis to bring said cams into cooperative disposition upon relative movement of said panels to close said container.

6. A self-locking container according to claim 1 or claim 2, wherein said panels are molded of high impact polystryene.

7. A container according to claim 1 or claim 2, wherein at least one of said panels includes a surface area adapted to receive indicia thereon.

8. A container according to Claim 1 or claim 2, wherein corners are formed by adjacent side walls, and corners are formed by adjacent walls, and a pin is located adjacent to said corners of each panel.

9. A container according to claim 1 wherein each panel is formed with multiple locking surfaces, which locking surfaces are oriented in any one direction.