Apparatus and method for shearing material

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United States of America Patent

PATENT NO 5901627
SERIAL NO

08696132

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to shearing apparatus, and method of operating the same. The apparatus may include a plurality of spring clamping members positioned longitudinally along a first die shoe, the clamping members positioned in raised stepped sequence from a centerline perpendicular to longitudinal sides of the die shoe to sequentially contact with the sheet material. The shearing apparatus may include a die assembly having linear bearings and guide rails for guiding movement of the die shoe, and gas springs which return the die shoe to the open position. The shearing apparatus provides straight cuts with a maximum cut-edge tolerance of 0.0015 inch. The shearing apparatus may include a second die shoe having an angled blade to allow a higher shear to break ratio.

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Patent Owner(s)

Patent OwnerAddress
LITTELL INTERNATIONAL INC145 SWIFT ROAD ADDISON IL 60101

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Johnson, Kenneth C Bloomingdale, IL 57 2557
Zurek, Christopher A Crystal Lake, IL 8 63

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