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:
Dec. 01, 1987
Filed:
Jun. 05, 1985
Applicant:
Inventor:
Jean F Sulzer, Sevres, FR;
Assignee:
Enertec, Sevres, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 75 ; 360109 ;
Abstract
The present invention provides a simple apparatus for modifying at will the trajectory of heads in a rotating head magnetic recorder (for example, when the playback speed is changed) without introducing any active elements in the moving parts. Fixed electromagnets, controlled by a position sensor, control pendulum movements of the heads oscillating under centrifugal force due to their rotation.
Sulzer, Jean. (1987). Tracking alignment for a rotating magnetic transducer head (U.S. Patent No. 4710828). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4710828
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile