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.

Date of Patent:
Sep. 21, 1982

Filed:

Oct. 02, 1980
Applicant:
Inventors:

Horst Redlich, Berlin, DE;

Heinz Borchard, Nortorf, DE;

Rainer Ihlenburg, Berlin, DE;

Assignee:

Licentia Patent-Verwaltungs-G.m.b.H., Frankfurt am Main, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G01B / ;
U.S. Cl.
CPC ...
369270 ;
Abstract

A device for centering a record disc with respect to a turntable, in which the disc is successively radially centered and axially positioned relative to the turntable, which device includes a centering shaft engageable with the disc to effect preliminary radial centering thereof, is additionally provided with further radial centering elements mounted to engage a disc after it has engaged the shaft and to undergo yieldable movement relative to the turntable in the axial direction of the disc under the influence of its engagement with the disc for effecting final radial centering of the disc, and a magnetic attracting unit operatively associated with the disc and the turntable for axially positioning the disc after it has been finally radially centered.


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