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:
Aug. 06, 1985
Filed:
Feb. 21, 1984
Applicant:
Inventor:
Harold L Johnson, Pauline, SC (US);
Assignee:
Milliken Research Corporation, Spartanburg, SC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ; D01H / ; B65H / ;
U.S. Cl.
CPC ...
57283 ; 57 91 ; 57284 ; 57287 ; 57352 ;
Abstract
A direct current electromagnetic disc type tension control which periodically has the D. C. voltage increased from low voltage to high voltage and the high voltage is driven to zero a successive predetermined number of times to vibrate the tension discs in order to break the contact between the tension discs and between the tension discs and the electromagnet to lower the resistance to rotation of the discs.