US PATENT SUBCLASS 164 / 316
.~.~.~.~ Hot chamber type

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}
312  DF  .~.~.~ Piston-cylinder charger {3}
316.~.~.~.~ Hot chamber type {2}
317  DF  .~.~.~.~.~> Piston contains injection conduit
318  DF  .~.~.~.~.~> Fluid actuated piston

DEFINITION

Classification: 164/316

(under subclass 312) Apparatus wherein the piston means forces the metal directly from a melting unit or charge chamber to the casting cavity.

(1) Note. Apparatus is included herein where the charge is first segregated into a charging chamber while in the melting area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

309, for apparatus wherein direct pneumatic charging means forces the metal directly from a melting unit to the casting cavity.

335, for means to shape metallic material including a ladle or crucible type melt receptacle.

SEE OR SEARCH CLASS

222, Dispensing, appropriate subclasses for dispensing means in general.