US PATENT SUBCLASS 164 / 306
.~.~.~ Direct pneumatic charging means

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}
306.~.~.~ Direct pneumatic charging means {3}
307  DF  .~.~.~.~> Manually operated pressure generator
308  DF  .~.~.~.~> Flask sealing cap contains a pressure conduit
309  DF  .~.~.~.~> Hot chamber type {1}

DEFINITION

Classification: 164/306

(under subclass 303) Apparatus wherein the injection means includes means to apply a gas pressure directly to the casting material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

119, for processes of shaping liquid metal against a forming surface by direct fluid pressure.

285, for pressure shaping apparatus including a pressure gas or pressure vapor generator.