Disc cartridge

Details Disc cartridge Disc cartridge

2005-08-02

2005-08-02

Miller, Brian E. (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

C360S133000

Reexamination Certificate

active

06925648

ABSTRACT:
A disc cartridge accommodating an optical disc in a cartridge body. This disc cartridge is provided with a cartridge body formed by mating and joining a pair of upper and lower halves formed at the circumferential edges with rising circumferential walls which are mated to each other to constitute the circumferential side walls and, at the same time, formed at facing inner surfaces with walls for forming the accommodating portion which are mated to each other to constitute the disc accommodating portion in which the optical disc is accommodated. This cartridge body is provided with openings for recording and reproduction and a shutter member for opening and closing these openings. On the two sides of the cartridge body on the lower half from the front side toward the middle toward the back side are provided recess portions for preventing erroneous loading. A plurality of fusing portions for mating and fusing the upper and lower halves are provided at positions corresponding to these recess portions.Each fusing portion for mating and fusing the upper and lower halves is provided with a mating projection formed at one of the upper and lower halves and a mating projection formed at the other. A plurality of mating projections formed at either half comprise mating projections having projections for fusing annularly and continuously formed over the entire circumference of the end surfaces to be mated to the mating projections of the other half and mating projections having projections for fusing formed in the form of an arc in one part of the end surfaces.

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Patent Abstracts of Japan vol. 017, No. 585 (P-1632), Oct. 25, 1993 & JP 05 166329 A (Mitsubishi Kasei Corp), Jul. 2, 1993.

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