Endless woven dryer fabric for papermaking machine
AssigneeHuyck Licensco, Inc.
InventorsFriedrich Postl, Klaus Haiden
Life of this patent
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Abstract
An endless-woven dryer fabric for a papermaking machine includes: a plurality of upper warp yarns; a plurality of lower warp yarns; and a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units. Each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns. The upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop. The first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
Claims14
A dryer fabric for a papermaking machine, comprising:
- a plurality of upper warp yarns;
- a plurality of lower warp yarns;
- and
- a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units;
- wherein each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns;
- wherein the upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop;
- wherein the first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
A dryer fabric for a papermaking machine, comprising:
- a plurality of upper warp yarns;
- a plurality of lower warp yarns;
- and
- a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units;
- wherein each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns;
- wherein the upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop;
- wherein the first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop;
- wherein first and second areas immediately adjacent the seam have a density that is no more than 10 percent greater than the density of the remainder of the fabric.
A dryer fabric for a papermaking machine, comprising:
- a plurality of upper warp yarns;
- a plurality of lower warp yarns;
- and
- a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units;
- wherein each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns;
- wherein the upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop;
- wherein the first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop;
- and
- wherein the weft yarns comprise PET yarns and PPS yarns.
Dependencies are inferred from the claim text.