Tamper-proof lid lock in disc cartridge

Details Tamper-proof lid lock in disc cartridge Tamper-proof lid lock in disc cartridge

1997-03-14

1999-08-31

Klimowicz, William J.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

360133, 2063081, 20638711, G11B 2303

Patent

active

059462906

ABSTRACT:
A disc cartridge for containing therein a disc-shaped medium which includes a generally flattened disc casing having a disc chamber defined therein for accommodating the disc-shaped medium and also having an access opening leading into the disc chamber, a lid structure supported by the disc casing at a position adjacent the access opening for movement between a closed position, in which the access opening is closed, and an opened position, and a lid lock interposed between the disc casing and the lid structure for locking the lid structure in the closed position. The lid lock includes a removable lock piece having first and second spaced functional parts. The first functional part has a breakable region through which the removable lock piece is connected with a portion of one of the disc casing and the lid structure, and the second functional part is engageable with a portion of the other of the disc casing and the lid structure to retain the lid structure in the closed position. The lid structure can be moved from the closed position towards the opened position only when and after the removable lock piece is broken off along the breakable region by application of an external force thereto.

REFERENCES:
patent: 4564878 (1986-01-01), Weavers et al.
patent: 5093823 (1992-03-01), Ouwerkerk et al.
patent: 5150354 (1992-09-01), Iwata et al.
patent: 5285918 (1994-02-01), Weisburn et al.
patent: 5445265 (1995-08-01), Herr et al.
patent: 5796713 (1998-08-01), Tanaka

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