Mullite shell systems for investment castings and methods

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United States of America Patent

PATENT NO 11945024
APP PUB NO 20220234095A1
SERIAL NO

17597627

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Abstract

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A mullite shell mold for casting includes a facecoat layer containing ceramic flour. The mullite shell mold also includes a first layer disposed on the facecoat layer. The first layer can contain sintered ceramic media. The facecoat layer and the first layer can each contain less than 1 wt % crystalline silica.

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Patent Owner(s)

Patent OwnerAddress
CARBO CERAMICS INC575 N DAIRY ASHFORD SUITE 300 HOUSTON TX 77079

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Canfield, Ryan Houston, US 2 1
Janson, Ray Houston, US 2 1

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