US PATENT SUBCLASS 164 / 34
.~.~.~ With destruction of pattern to disassociate

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.~.~.~ With destruction of pattern to disassociate {1}
35  DF  .~.~.~.~> Extracting pattern in liquid state {1}

DEFINITION

Classification: 164/34

(under subclass 15) Process directed to extracting a destructable pattern from the mold structure by (1) a chemical change, e.g., burning, etc., (2) a physical change of state, e.g., liquefying, etc., or (3) by reducing a solid to a flowable granular material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

246, for a destructible type pattern.

SEE OR SEARCH CLASS

29, Metal Working,

423+, for processes employing transitory or temporary material or parts. 249, Static Molds,

61+, for a static shaping surface having a destructible feature.

264, Plastic and Nonmetallic Article Shaping or Treating: Processes,

221, for processes of destroying a pattern to disassociate the same from a plastic shaping mold.