Textiles: weaving – Fabrics – Drier felts
Reexamination Certificate
2004-03-18
2008-10-28
Muromoto, Jr., Bobby H (Department: 3765)
Textiles: weaving
Fabrics
Drier felts
C139S3830AA, C139S38300A, C162S900000, C442S203000
Reexamination Certificate
active
07441566
ABSTRACT:
Triple layer papermaker's forming fabrics having a set of top MD yarns that are interwoven exclusively with a set of top CMD yarns to form at least part of a top fabric layer and a set of bottom MD yarns that are interwoven exclusively with a set of bottom CMD yarns to form at least part of a bottom fabric layer are provided. These fabrics further include a set of stitching MD yarn pairs. The stitching MD yarns that comprise each such pair weave in both the top fabric layer and the bottom fabric layer such that at locations where the first yarn in the pair weaves in the top fabric layer the second yarn in the pair drops down into the bottom fabric layer. In embodiments of the present invention, each stitching MD yarn may also be woven so as to form side-by-side machine direction knuckles on the bottom surface of the bottom fabric layer with a bottom MD yarn. In other embodiments of the invention, at least some of the top CMD yarns that the stitching MD yarns of the stitching MD yarns pairs pass over immediately before dropping down into the bottom fabric layer have a larger diameter and/or a higher modulus than the remainder of the top CMD yarns.
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Muromoto, Jr. Bobby H
Myers Bigel & Sibley & Sajovec
Weavexx Corporation
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