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. 05, 1980
Filed:
Jan. 09, 1979
Applicant:
Inventors:
Patrick Beau, Largentiere, FR;
Carlos M Gabalda, Granges-les-Valence, FR;
Assignee:
ASA S.A., Roanne, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ; D01H / ; D02J / ;
U.S. Cl.
CPC ...
57310 ; 57 5849 ; 57282 ;
Abstract
In a process and apparatus for manufacturing drawn and twisted multifilament synthetic yarn an extruded and partially drawn filamentary synthetic yarn is subjected to a supplementary, simultaneous, drawing and twisting operation using a double twist spindle rotated such that the tension in the yarn causes drawing. After the spinning and drawing, the yarn is subjected to heat treatment under controlled tension and is then wound up.