The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1992
Filed:
Oct. 31, 1989
Hirokimi Iwata, Ibaragi, JP;
Shuji Haruna, Tokyo, JP;
Sony Corporation, , JP;
Abstract
A disk cartridge includes a main body of the cartridge having an opening on its major surface by which the signal recording surface of an optical disk accommodated in the main body is exposed to the outside and an aperture formed on the lateral surface orthogonal to the major surface of the main body for enabling the optical disk to be inserted into and taken out of the cartridge for disk exchange. The disk cartridge also has an opening/closing member (21) which is rotatably supported by the main body by pivot pins (28) provided at its one end for engaging in recesses in the aperture in the main body, for opening and closing the aperture and, which is provided at its other end with a resilient arm (34) having a retaining end pawl engageable with a mating retaining section in the main body. By actuation of the opening/closing member, the aperture in the main body is opened or closed to permit exchange of the optical disk.