US PATENT SUBCLASS 164 / 36
.~.~.~.~.~ Utilizing fluent extracting medium

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

1  DF  PROCESS {6}
6  DF  .~ Shaping a forming surface (e.g., mold making, etc.) {8}
15  DF  .~.~ Shaping fluent material to form mold {9}
34  DF  .~.~.~ With destruction of pattern to disassociate {1}
35  DF  .~.~.~.~ Extracting pattern in liquid state {1}
36.~.~.~.~.~ Utilizing fluent extracting medium

DEFINITION

Classification: 164/36

(under subclass 35) Process wherein a fluid medium is used to effect the liquid extraction of the pattern.

(1) Note. The fluid medium used herein would include any solvent fluid, e.g., steam, hot water, etc.