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:
Sep. 28, 1982
Filed:
Jul. 07, 1980
Applicant:
Inventors:
Jean-Louis Faure, Roanne, FR;
Michel Vanhelle, Lille, FR;
Assignee:
ASA S.A., , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ; D01H / ; D02G / ; D02G / ;
U.S. Cl.
CPC ...
57-6 ; 57 12 ; 57293 ; 57328 ;
Abstract
A process for producing a yarn with alternate twist, which is obtained by intermittently varying the distance which the twist extends back upstream of a false twister. The variation in the distance is produced without braking the yarn and is achieved by means of a blocking device acting intermittently at a point located close to the false twister. The duration of action of the blocking device approximately corresponds to the time taken by a given point on the yarn to cover the distance from a delivery member to the false twister.