Freight car yoke molding apparatus and method
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United States of America Patent
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Jan 14, 2014
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N/A
app pub date -
Jul 16, 2009
filing date -
Jul 16, 2008
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Abstract
This invention teaches an improved apparatus and method to make metal alloy castings, such as freight car yokes. One embodiment of the invention comprises a core mold assembly unit, wherein the mold unit is filled with molten metal. The core mold assembly units may be further formed of the same material, such as phenolic urethane impregnated sand, which is used to accurately replicate the desired shape of a final desired product.
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