US PATENT SUBCLASS 164 / 215
.~.~ Means rotatably withdrawing pattern

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

159  DF  MEANS TO SHAPE A FORMING SURFACE {8}
213  DF  .~ Including means for separating forming surface from shaping means {9}
215.~.~ Means rotatably withdrawing pattern {1}
216  DF  .~.~.~> Screw thread pattern

DEFINITION

Classification: 164/215

(under subclass 213) Apparatus having means which effect withdrawal of the pattern by a rotational movement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240, for a rotatable or pivotal pattern plate associated with a flask member.

247, for a rotatable or pivotal pattern, per se.