METHOD AND SYSTEM FOR MANUFACTURING RAILCAR COUPLER LOCKS
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Dec 28, 2011
filing date -
Dec 28, 2011
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Abandoned
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Abstract
A casting assembly for manufacturing a lock of a railcar coupler includes drag and cope portions of a first mold that defines exterior surfaces of the lock, wherein the first mold comprises a first molding material. The casting assembly also includes a second mold formed of a second molding material. The second mold defines a cavity with an interior surface that substantially complements an exterior surface of the first mold. A down sprue is formed in the second mold. A gating system is formed in the second mold that and is in fluid communication with the down sprue. An in-gate is formed in the second mold and is in fluid communication with the gating system and the first mold.
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