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:
Jan. 29, 1980
Filed:
Aug. 18, 1978
Applicant:
Inventor:
Anthonie Walraven, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; B65H / ;
U.S. Cl.
CPC ...
242209 ; 226181 ; 226196 ; 242 76 ;
Abstract
In a magnetic tape drive arrangement having a tension-controlled loop, with the tension in the part of the magnetic tape upstream from the loop being maintained constant as far as possible by suitable means in a conventional manner, compensation of variations of the tension of the magnetic tape in the loop as the result of variations in the coefficients of friction of the magnetic heads due to changes in temperature and humidity, is provided by an element which frictionally engages the magnetic tape upstream from the closed loop, coefficient of friction and angle of contact of the element being selected in accordance with a specific relationship.