US PATENT SUBCLASS 164 / 67.1
.~.~.~ Atmosphere effected by chemical reaction

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

1  DF  PROCESS {6}
47  DF  .~ Shaping liquid metal against a forming surface {26}
66.1  DF  .~.~ Applying an inert or reducing gaseous atmosphere to work {2}
67.1.~.~.~ Atmosphere effected by chemical reaction

DEFINITION

Classification: 164/67.1

Atmosphere effected by chemical reaction:

(under subclass 66.1) Process wherein the inert or reducing atmosphere is effected by a chemical reaction involving the casting material or is initiated by the introduction of a reactive material into the mold environment.