Method of making a mechanical fastener using a crowned surface

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United States of America Patent

PATENT NO 9687048
APP PUB NO 20150096660A1
SERIAL NO

14401326

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Abstract

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A method of making a mechanical fastener. The method includes providing a slit web having mechanical fastening elements, applying tension to the slit web in the machine direction, and spreading the slit web in the cross-machine direction by moving the slit web over a crowned surface to provide a spread mechanical fastening web. The slit web includes a plurality of interrupted slits that are interrupted by intact bridging regions of the web. The crowned surface may be an air bearing, or at least a portion of the crowned surface is a low-friction surface, and the crowned surface and the slit web are not moving at the same speed in the same direction. The crowned surface may be provided with at least one ridge.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 SAINT PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gagnon, Pieter J Minneapolis, US 4 12
Gilbert, Thomas J St. Paul, US 19 96
Peltier, Mark A Forest Lake, US 22 271
Wood, Leigh E Woodbury, US 94 2850

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