US PATENT SUBCLASS 164 / 21
.~.~.~.~.~ Resin containing

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  DF  .~.~.~.~ Particulate solid material {2}
21.~.~.~.~.~ Resin containing

DEFINITION

Classification: 164/21

(under subclass 20) Process wherein the particulate mold material that is sprayed against the shaping surface contains

a resin material.

(1) Note. This subclass generally includes shell type molding processes where the resin material functions as a binder.

(2) Note. See Class 520, Synthetic Resins or Natural Rubbers, for a resin or composition containing a resin.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165+, for shell molding apparatus.

526+, for processes of utilizing resin containing mold materials generally.