US PATENT SUBCLASS 164 / 305
.~.~.~ Including means to vent die cavity or gate

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

271  DF  MEANS TO SHAPE METALLIC MATERIAL {12}
284  DF  .~ Pressure shaping means {5}
303  DF  .~.~ Injection type {4}
305.~.~.~ Including means to vent die cavity or gate

DEFINITION

Classification: 164/305

(under subclass 303) Apparatus which includes means specifically provided for facilitating the removal of gas in the article forming cavity proper or the introduction port thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61+, for processes of shaping liquid metal against a forming surface utilizing a vacuum.

254+, for casting apparatus of this class having means to apply vacuum or suction directly to the molten casting material.

410, for vent or vent forming apparatus, per se.