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. 13, 1988
Filed:
Aug. 04, 1987
Applicant:
Inventors:
Masaya Ishibashi, Saitama, JP;
Masaaki Kiyomiya, Saitama, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369270 ; 369194 ; 369199 ;
Abstract
A centering apparatus for a disk having two circular recording substrates joined together with respective center holes which may be misaligned. A first and a second centering member center respectively the two disks and a mechanical actuating rod in a single motion moves the second centering member radially outward into engagement with center hole of the second substrate and presses the first centering member axially out of engagement with the center hole of the first substrate.