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. 11, 1998
Filed:
Mar. 27, 1997
Applicant:
Inventors:
Itzchak Porat, Goostrey, GB;
Kendall W Gordon, Jr, North Kingston, RI (US);
Avishai Nevel, Providence, RI (US);
David Bonneau, West Boylston, MA (US);
Assignee:
Lawson-Hemphill, Inc., Pawtucket, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
226 44 ; 2261182 ;
Abstract
A system for moving yarn under substantially constant tension, including a translationally-fixed pivoting device, having a neutral position, for applying tension to the yarn, and a variable-speed yarn drive for moving the yarn across the pivoting device. The rotational position of the pivoting device is determined in relation to its neutral position, and in response, the speed of the yarn drive is altered to move the pivoting device closer to its neutral position for maintaining a relatively constant tension on the yarn.