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US 3,947,922 AGranted
Foundations for card clothing
AssigneeThe English Card Clothing Company Limited
InventorPeter Ibbotson
Life of this patent
Estimating the term…
Abstract
A card clothing foundation, to which the carding wires are fitted, has an anti-friction surface layer of polyurethane about 0.006 inch in thickness and containing silicone.
Claims2
A card clothing foundation having a surface that is exposed during carding and having teeth projecting from that surface during carding and an anti-friction covering for reducing the retentivity of waste and fiber at said surface consisting essentially of a relatively thin carrier layer of hard wear resistant polyurethane in which a compatible silicone is incorporated.
Dependencies are inferred from the claim text.