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:
Oct. 08, 1985
Filed:
Dec. 02, 1982
Shojiro Asami, Atsugi, JP;
Hiroshi Sumihiro, Atsugi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A flexible magnetic disc cassette carries a normally closed automatic slide shutter which selectively covers head access holes provided on the cover of the disc cassette. Basically, such disc cassette is designed for use with a disc drive mechanically which carries an automatic shutter opening system. In order to be able to use such cassette with a disc drive having no such automatic shutter opening system, the shutter is arranged to move on said cover to an extended position where the shutter is latched in an extended open position. Apparatus is provided which automatically operates the shutter of the cassette upon insertion of the cassette into the disc drive.