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:
Oct. 20, 1998
Filed:
Oct. 16, 1996
Applicant:
Inventors:
Gregory Eugene Sweet, Greenville, NC (US);
George Vassilatos, Wilmington, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01D / ;
U.S. Cl.
CPC ...
26421114 ; 264237 ;
Abstract
An improvement is provided in the rapid quenching of melt-spun polymeric filaments, whereby the filaments are cooled by quenching gas that is accelerated along the threadline by being passed through a tube of smaller dimensions with the filaments before they emerge.