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. 02, 1980
Filed:
Feb. 02, 1979
Applicant:
Inventor:
Hisayoshi Nakatsuka, Greve Strand, DK;
Assignee:
Ortofon Manufacturing A/S, Valby, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; H04R / ; H04R / ;
U.S. Cl.
CPC ...
274 37 ; 1791 / ; 1791 / ;
Abstract
A phonograph pickup comprises the end portion of a cylindrical pole leg and an opposing yoke with an air gap therebetween, and a moving system including a stylus arm and an armature. A pivoting means provides for pivotal mounting of the moving system in the air gap, and comprises a first resilient bearing spaced a first distance from the pivot point for supporting the armature, and a second resilient bearing spaced a second distance (greater than the first distance) from the pivot point for engaging the moving system with a lower pressure than the first resilient bearing.