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US 4,995,429 AGranted
Paper machine fabric
AssigneeAlbany International Corp.
InventorRobert H. Kositzke
Life of this patent
Estimating the term…
Abstract
A multilayer papermaking machine fabric is disclosed, characterized in part by alignment vertically of yarns in each layer.
Claims8
A papermaking machine fabric, which comprises:
- an upper layer of interwoven first machine direction and first cross-machine direction yarns, said first yarns being of a synthetic, polymeric resin;
- a lower layer of interwoven second machine direction and second cross-machine direction yarns, said second yarns being of a synthetic, polymeric resin;
- the first machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second machine direction yarns of the lower layer;
- and/or
- the first cross-machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second cross-machine direction yarns of the lower layer;
- and
- one of cross-machine direction binder yarns interwoven with the machine direction yarns in the upper and the lower layers at positions between the vertically aligned first and second machine direction yarns of the upper and the lower layers :
- said dryer fabric having a projected open area of at last about 30-55% of the total area of the fabric.
5 more elements
A papermaking machine fabric, which comprises:
- a plurality of cross-machine direction yarns disposed in a plurality of separate layers, each layer being on a plane parallel to the cross-machine direction plane of the fabric;
- a plurality of machine direction yarns interwoven with the cross-machine direction yarns and binding the layers of cross-machine direction yarns together to form a multi-layer textile fabric;
- the cross-machine direction and machine direction yarns being synthetic monofilaments and the cross-machine direction yarns in a given layer being separated from adjacent cross-machine direction yarns in the adjacent layer by void spaces within the body of the woven fabric;
- the first machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second machine direction yarns of the lower layer;
- the first cross-machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second cross-machine direction yarns of the lower layer;
- and
- cross-machine direction binder yarns interwoven with the machine direction yarns in the upper and the lower layers at positions between the vertically aligned first and second machine direction yarns of the upper and the lower layers;
- said dryer fabric having a projected open area of at least about 30 to 55 percent of the total area of the fabric.
5 more elements
A papermaking machine fabric, which comprises:
- an upper layer of interwoven first machine direction and first cross-machine direction yarns, said first yarns being of a synthetic, polymeric resin;
- a lower layer of interwoven second machine direction and second cross-machine direction yarns, said second yarns being of a synthetic, polymeric resin;
- the first machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second machine direction yarns of the lower layer;
- and/or
- the first cross-machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second cross-machine direction yarns of the lower layer;
- and
- one of machine direction binder yarns interwoven with the cross-machine direction yarns in the upper and the lower layers at positions between the vertically aligned first and second machine direction yarns of the upper and the lower layers:
- said dryer fabric having a projected open area of at least about 30-55% of the total area of the fabric.
5 more elements
A papermaking machine fabric, which comprises:
- a plurality of cross-machine direction yarns disposed in a plurality of separate layers, each layer being on a plane parallel to the cross-machine direction plane of the fabric;
- a plurality of machine direction yarns interwoven with the cross-machine direction yarns and binding the layers of cross-machine direction yarns together to form a multi-layer textile fabric;
- the cross-machine direction and machine direction yarns being synthetic monofilaments and the cross-machine direction yarns in a given layer being separated from adjacent cross-machine direction yarns in the adjacent layer by void spaces within the body of the woven fabric;
- the first machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second machine direction yarns of the lower layer;
- the first cross-machine direction yarns of the upper layer being in vertical alignment with the corresponding underlying second cross-machine direction yarns of the lower layer;
- and
- machine direction binder yarns interwoven with the cross-machine direction yarns in the upper and the lower layers at positions between the vertically aligned first and second machine direction yarns of the upper and the lower layers;
- said dryer fabric having a projected open area of at least about 30 to 55 percent of the total area of the fabric.
5 more elements
Dependencies are inferred from the claim text.