System and method of forming a solid casting

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United States of America Patent

PATENT NO 9434000
APP PUB NO 20150101776A1
SERIAL NO

14515469

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Abstract

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A method and a system for forming a solid casting. A material is fed into a mold having a retractable bottom. A first portion of the material at a first, lower position within the mold is allowed to solidify to thereby form a portion of the casting. The retractable bottom is withdrawn downwards at a withdrawal rate. A second portion of the material at a second, upper position within the mold is maintained in a liquid state by application of heat thereto, using a plasma arc generated by a plasma arc torch. A voltage of the plasma arc is measured, and the withdrawal rate of the retractable bottom is controlled based on the voltage of the plasma arc.

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Patent Owner(s)

Patent OwnerAddress
RETECH SYSTEMS LLC100 HENRY STATION ROAD UKIAH CA 95482

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lampson, Robin Ukiah, US 1 0
Tesoriere, Tony Ukiah, US 1 0

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