Papermaker's grooved back felt
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 10, 1983
Grant Date -
N/A
app pub date -
Jul 30, 1982
filing date -
Jul 30, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A papermaking felt having interwoven warp and filling yarns on its face side and bulky rib forming yarns on its machine side, the rib forming yarns lying in spaced apart relation to define water conveying channels therebetween, there being a batt surface on the face side of the fabric needled through the warp and filling yarns and into the rib forming yarns, the rib forming yarns being heat fused following needling to render them essentially incompressible, the rib forming yarns being initially attached to the warp yarns by holding yarns which may be removed prior to the heat fusing or retained as a permanent part of the felt.
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Family
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Cited Art Landscape
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