US PATENT SUBCLASS 164 / 517
.~.~.~.~.~.~ With particular material for treating or perfecting casting

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}
23  DF  .~.~.~ Composite, plural part or multilayered mold {4}
24  DF  .~.~.~.~ Sequentially forming mold portions on same shaping member {1}
516  DF  .~.~.~.~.~ Utilizing aqueous slurry material {3}
517.~.~.~.~.~.~ With particular material for treating or perfecting casting

DEFINITION

Classification: 164/517

With particular material for treating or perfecting casting:

(under subclass 516) Process wherein a specific mold material is utilized to physically or chemically treat the cast product to either physically enhance its properties or to prevent physical or chemical degradation of the cast product.