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.

Date of Patent:
Aug. 24, 1999

Filed:

Dec. 18, 1997
Applicant:
Inventor:

Gerd Rieker, Troy, NY (US);

Assignee:

Sonoco Development, Inc., Hartsville, SC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; D06B / ;
U.S. Cl.
CPC ...
21049701 ; 68198 ;
Abstract

A yarn carrier is provided of the type including a substantially rigid tubular core having passageways through the sidewall thereof for the passage of dye or wet finishing bath into the yarn to be wrapped thereon. A filter sleeve is wrapped around the outer surface of the tubular core to prevent entrapment of the yarn in the passageways and for filtering the dye and/or finishing bath. The filter sleeve is formed from a filter material which is wrapped into a sleeve and abutting edges of the filter material are bonded together along a seam. The seam is contemplated to be substantially continuous and extend the length of the sleeve. The tubular sleeve is slid over or heat shrunk onto the outside surface of the tubular core prior to the winding of the yarn thereon.


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