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:
Jun. 21, 1977
Filed:
Jan. 13, 1975
Applicant:
Inventors:
Karl-August Heinroth, Dormagen, DT;
Theo Dietrich, Dormagen, DT;
Hans Bach, Dormagen, DT;
Hans-Dieter Jurischka, Dormagen, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ; D02G / ;
U.S. Cl.
CPC ...
57 3 / ; 5715 / ;
Abstract
Process and apparatus for producing highly elastic crimp yarn by the draw-texturing method using a false-twister, in which the filament speed exceeds 300 m/min and in which setting is carried out at constant filament tension by brief contact of the filament with a heating rail with roughened contact surface and a length of at most 400 mm.