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:
Nov. 07, 1989
Filed:
Jul. 11, 1988
Davis W Chamberlin, St. Paul, MN (US);
Vurnen J Leonard, Minneapolis, MN (US);
Osamu Koizumi, Sendai, JP;
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Sony Corporation, Tokyo, JP;
Abstract
A cartridge enclosing a disk-shaped magnetic recording medium is provided with a disk restraint disposed between the disk and the cartridge for sliding movement in the plane of the disk. A camming surface is provided on the cartridge which forces the restraint downwardly to restrain the disk when the cartridge is not in use. In use, the restraint is slid out of engagement with the camming surface to release the recording disk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile