Production of product sheets having waved marginal portions

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United States of America Patent

PATENT NO 5443379
SERIAL NO

08250039

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Sheet products having a waved marginal portion are prepared by passing a sheet of a plastic material through and compressing the sheet between shaped circumferential rollers which are positioned and configured to provide therebetween a plurality of differing nip clearance gap distances and to compress the sheet to form an intermediate sheet portion flanked by a marginal waved flanking portion and a second flanking portion, wherein the intermediate portion has a thickness greater than the second portion which, in turn, has a thickness greater than the marginal waved portion.

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Patent Owner(s)

Patent OwnerAddress
NESTEC S AAVENUE NESTLE 55 VEVEY CH-1800

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hsu, Jau Y Brookfield, CT 18 157
Orzech, Thomas S New Milford, CT 5 60

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