Dual screw extrusion apparatus having a mixing chamber and a conveying chamber downstream thereof with the mixing chamber having a wall clearance greater than that of the conveying chamber

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United States of America Patent

PATENT NO 9090013
APP PUB NO 20090175118A1
SERIAL NO

12403686

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An extrusion apparatus including a mixing chamber comprising two intersecting housing bores and an inlet positioned to receive material into the mixing chamber. Two screw shafts are supported for rotation about respective generally parallel axes and include respective screw sections positioned for co-wiping intermeshing rotation within the respective housing bores of the mixing chamber. The apparatus supports screw shaft rotational speeds greater than approximately 800 rpm and includes screw shaft conveying portions that are rotatably cantilevered for self-journaled support within respective separate conveying chambers arranged generally parallel to one another downstream of the mixing chamber.

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Patent Owner(s)

Patent OwnerAddress
B&P LITTLEFORD LLC1000 HESS AVENUE SAGINAW MI 48601

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasliwal, Shashank Gulabchand Maharashtra, IN 2 5

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