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:
Mar. 25, 2008
Filed:
Dec. 12, 2003
Gregory James Scott, Hockessin, DE (US);
Joseph Anthony Perrotto, Landenberg, PA (US);
Glen Edward Simmonds, Avondale, PA (US);
Richard Davis Bryson, Elkton, MD (US);
William Robert Corcoran, Kennett Square, PA (US);
William Charles Walker, Wilmington, DE (US);
Gregory James Scott, Hockessin, DE (US);
Joseph Anthony Perrotto, Landenberg, PA (US);
Glen Edward Simmonds, Avondale, PA (US);
Richard Davis Bryson, Elkton, MD (US);
William Robert Corcoran, Kennett Square, PA (US);
William Charles Walker, Wilmington, DE (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A method for starting or stopping each of at least two separately controllable roll-sets () used for processing a yarn (Y) in a stretch-break process, each roll-set comrpising at least two rolls, the method is characterized by the step of each roll-set, changing the speed of each roll from an initial condition to a steady state condition in accordance with a predetermined sequence and in coordination with a change in speed of at least one of the other rolls, such that simultaneous complete breakage of a yarn (Y) being processed in a stretch-break process is minimized.