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. 17, 2004
Filed:
Apr. 15, 2002
Applicant:
Inventor:
Jack G. Haselwander, Chattanooga, TN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 2/318 ; D02H 1/322 ; D03D 4/906 ;
U.S. Cl.
CPC ...
B65H 2/318 ; D02H 1/322 ; D03D 4/906 ;
Abstract
A tension device is utilized for equalizing, or at least reducing differentials in tension across strands in a web. The device utilizes an overfeed roll which rotates faster than the speed of feeding the web. Strands at the desired tension, or less, slip about the exterior surface of the overfeed roll. Strands which are greater than the desired tension have sufficient friction to be rotated, at least temporarily, by the overfeed roll to thereby create slack in the higher tension strands to equalize the tension relative to the other strands. Feedback from feed rolls, support rolls, and/or the overfeed roll may be utilized to adjust the speed of the overfeed roll.