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:
Dec. 05, 1989
Filed:
Jul. 11, 1988
Applicant:
Inventors:
Vurnen J Leonard, Minneapolis, MN (US);
Masayuki Kuroda, Yokohama, JP;
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 ; 360 9702 ;
Abstract
A generally square disk cartridge for a recording disk includes at least one air filter in a corner of the cartridge and a circular rib adjacent the disk and between the disk and the filter. The cartridge may also include a radial rib connected to the circular rib to enhance air flow to the filter. Air filters may be located in each of the corners of the cartridge with associated circular and radial ribs to induce air flow to each.