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. 17, 1989
Filed:
Jul. 11, 1988
Applicant:
Inventors:
Vurnen Leonard, St. Paul, MN (US);
Arthur K Kato, St. Paul, MN (US);
Kiyoshi Ohmori, St. Paul, MN (US);
Keisuke Fujiwara, St. Paul, MN (US);
Yutaka Soda, St. Paul, MN (US);
Assignees:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360133 ;
Abstract
A disc cartridge including a shell, a disc within the shell, a disc restraint for selectively restraining the drive may be inserted to move the restraint is provided with a cover attached to the restraint for engaging the release pin, moving the restraint in response to movement of the release pin and closing the opening to prevent the entrance of contaminants into the shell.