US PATENT SUBCLASS 164 / 160.1
.~ Including means applying vacuum directly to mold material

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

159  DF  MEANS TO SHAPE A FORMING SURFACE {8}
160.1.~ Including means applying vacuum directly to mold material {1}
160.2  DF  .~.~> And means to apply consumable shielding film to shaping surface

DEFINITION

Classification: 164/160.1

Including means applying vacuum directly to mold material:

(under subclass 159) Apparatus including means for directly applying a suction to work material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

253+, for casting apparatus including vacuum means.