US PATENT SUBCLASS 164 / 162
.~.~ Means for shaping sprues or risers

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

159  DF  MEANS TO SHAPE A FORMING SURFACE {8}
161  DF  .~ Including means for sweeping or cutting forming surface {3}
162.~.~ Means for shaping sprues or risers

DEFINITION

Classification: 164/162

(under subclass 161) Apparatus which includes means specially adapted to remove material for forming a sprue or riser in a mold structure.