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:
Apr. 10, 1979
Filed:
Jan. 06, 1978
Applicant:
Inventors:
Martin F Stark, Sherborn, MA (US);
Robert L Whalen, Cambridge, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
274 / ;
Abstract
A phonograph record adapter comprising a rigid ring adapted to receive a standard phonograph record therein, a flange extending inwardly of the ring, the interior diameter of the flange being less than the diameter of the record, the flange being adapted to engage and overlie a surface of the record and being further adapted to exert a force upon the record when the record is in playing position to substantially negate the effects of warpage in the record, and spring biasing means mounted on interior portions of the ring and engageable with the record to center the record.