US PATENT SUBCLASS 164 / 38
.~.~.~.~ Diverse pressure applications

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}
37  DF  .~.~.~ By compacting material against shaping surface {3}
38.~.~.~.~ Diverse pressure applications

DEFINITION

Classification: 164/38

(under subclass 37) Process directed to applying two or more pressure forces which are different in kind upon the mold material to densify the same.