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. 28, 1982
Filed:
Sep. 02, 1980
Applicant:
Inventor:
Martin Sonnek, Vienna, AT;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; G05B / ; G03B / ;
U.S. Cl.
CPC ...
242190 ; 242 7551 ; 318480 ;
Abstract
A device for controlling tension in an elongated article arranged along a path, and a tape recording and/or reproducing apparatus including such a device, in which a control circuit influences the tension in the article, such as a tape, responsive to an electrical signal which is related to a moveable tension sensor. The electrical signal is varied by moving a metal part arranged as a damping element for a single coil only, so as to vary the quality factor (Q) of the coil.