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. 08, 1991
Filed:
May. 01, 1990
Applicant:
Inventor:
Klaus Schafer, Wuppertal, DE;
Assignee:
Barmag AG, Remscheid, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D02J / ;
U.S. Cl.
CPC ...
28263 ; 57333 ;
Abstract
A method and apparatus for the intense crimping of a multifilament yarn in a stuffer box is disclosed, and wherein a false twist is imparted to the advancing yarn at a location upstream of the stuffer box, and with the intensity of the false twist being periodically or aperiodically varied.