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US 4,403,632 AGranted
Corrugator belt with high air permeability
AssigneeAlbany International Corp.
InventorsEric R. Romanski, Michael J. Josef
Life of this patent
Estimating the term…
Abstract
The disclosure is of a multi-layer, flat woven, composite fabric having a duplex weave base of synthetic, polymeric resin yarns and soft surfaces of multi-filament or spun yarns. The fabric is useful as a conventional corrugator belt when made endless.
Claims10
A multi-layer, flat woven, high permeability, composite fabric, useful in forming the body of an endless corrugator machine belt and having an air permeability of at least 10 and up to 2000 cubic feet per minute which comprises;
- a multi-layer base of interwoven machine direction and cross-machine direction synthetic polymeric resin monofilament yarns;
- said base being sandwiched between surface layers, at least one of which is of interwoven, soft textile yarns;
- said layers of soft textile yarns being secured to the base by an interweaving of the soft textile yarns with the base yarns.
A corrugator belt which comprises;
- an endless, multi-layer, flat woven composite fabric having a duplex weave base of interwoven machine direction and cross-machine direction synthetic polymeric resin monofilaments and a soft surface of spun yarns which interweave with yarns of the woven base to provide stitching points which secure the surface yarns to the base, said fabric having an air permeability of at least 10 and up to 2000 cubic feet per minute.
Dependencies are inferred from the claim text.