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:
Oct. 17, 1978
Filed:
Jul. 20, 1976
Applicant:
Inventor:
William Buttfield Brecht, Wayne, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
274 / ; 274 / ;
Abstract
Improved apparatus and methods for tracking a stylus on a rotating disk are disclosed. The apparatus preferably takes the form of an inertially balanced four bar linkage. Also disclosed herein are improved apparatus for supporting a rotating disk, improved apparatus for driving a rotating platter which supports a disk and improved apparatus for following a stylus and supplying power thereto as it crosses the disk.