US PATENT SUBCLASS 164 / 20
.~.~.~.~ Particulate solid material

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}
19  DF  .~.~.~ By spraying or slinging material against shaping surface {1}
20.~.~.~.~ Particulate solid material {2}
21  DF  .~.~.~.~.~> Resin containing
22  DF  .~.~.~.~.~> Employing compressed air as ram or piston to force sand against shaping surface

DEFINITION

Classification: 164/20

(under subclass 19) Process directed to applying the solid mold material in particulate form to the shaping surface.