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:
Dec. 31, 2002
Filed:
Jul. 17, 2000
Applicant:
Inventor:
Katsuhiko Yoshida, Osaka, JP;
Assignee:
Kabushiki Kaisha Kobe Seiko Sho, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01D 5/14 ; D04H 3/02 ;
U.S. Cl.
CPC ...
D01D 5/14 ; D04H 3/02 ;
Abstract
A drawing unit including two or more slits extending in a widthwise direction of a collecting conveyor, each slit including an inlet for sucking groups of filaments pushed out from a spinneret, a path in which air currents flowing in a suction direction is formed for drawing the groups of filaments, and an outlet for blowing out the groups of filaments towards the collecting conveyor after the drawing. The drawing unit and a drawing method are capable of producing a non-woven fabric web with uniform thickness and with only a small number of density spots as a result of reduced entanglement of the filaments in the paths of the drawing unit.