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:
Nov. 16, 1976
Filed:
Mar. 14, 1974
Applicant:
Inventors:
Zoltan Steve Toronyi, Kingston, CA;
Ralph Carl Wirsig, Kingston, CA;
Assignee:
Du Pont of Canada Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ; D02G / ;
U.S. Cl.
CPC ...
5714 / ; 57 3 / ; 57152 ; 5715 / ; 57160 ; 57163 ;
Abstract
A composite yarn consisting of an elastomeric yarn intermingled with a non-elastomeric multifilament yarn and a process for its manufacture comprising the steps of: feeding an elastomeric yarn and a non-elastomeric multifilament yarn through a draw zone adapted to temporarily stretch the elastomeric yarn and to draw the non-elastomeric multifilament yarn and false twisting the elastomeric yarn and the non-elastomeric multifilament yarn together to form a false twisted doubled yarn to a heat setting treatment at a temperature below that at which the elastomeric yarn elasticity would be substantially destroyed.