Textiles: fiber preparation – Working – Carding
Reexamination Certificate
2008-08-06
2010-06-15
Hurley, Shaun R (Department: 3765)
Textiles: fiber preparation
Working
Carding
Reexamination Certificate
active
07735201
ABSTRACT:
Card wiring includes a first carding wire including a number of rough, pointed, first teeth, and a second carding wire having smooth, blunt teeth. The rough teeth include a rough surface having a first coefficient of friction, an attack angle, and a back angle. The smooth blunt teeth have a smooth surface including a second coefficient of friction. The first teeth are adjacent to and spaced apart from the second teeth. The first coefficient of friction is sufficiently greater than the second coefficient of friction so that, in use, a fiber engaged by the rough, pointed, first tooth and by the smooth, blunt second tooth will be held sufficiently longer by the first rough tooth so that the fiber will be pulled in a direction transverse to a direction of movement of a web engaged by the first and second carding wires. Three or more carding wires may be provided.
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Bekaert Carding Solutions NV brochure entitled “Bekaert/Carding solutions for non woven Cards”, printed out Jul. 3, 2008 from http://www.bekaert.com/cardingsolutions/uploads/PerPage/Home/BEKAERT—BRO—CARD—NonWov.pdf, undated, Copyright 2005 NV Bekaert SA, (8 pp.).
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Abstract (English) for EP 0 249 706 A, entitled “Clothing for textile preparation machines, in particular combing machines, carding machines or the like” (one page) from EPO website espacenet.com, undated, downloaded Dec. 28, 2009.
Hurley Shaun R
NV Bekaert SA
Shlesinger & Arkwright & Garvey LLP
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