US PATENT SUBCLASS 419 / 68
.~.~ Isostatic/Hydrostatic pressing

Current as of: June, 1999
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419 /   HD   POWDER METALLURGY PROCESSES

61  DF  FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED METAL PARTICLES {2}
66  DF  .~ Consolidation of powders {3}
68.~.~ Isostatic/Hydrostatic pressing

DEFINITION

Classification: 419/68

Isostatic/hydrostatic pressing:

(under subclass 66) Processes wherein the powders is compacted or shaped by pressure exerted uniformly in all directions on a preformed flexible mold immersed in a fluid in a pressure vessel, or wherein the compaction is performed on a hydraulic or hydrostatic press.