US PATENT SUBCLASS 419 / 41
.~.~ Extruding

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

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
38  DF  .~ Consolidation of powder prior to sintering {4}
41.~.~ Extruding

DEFINITION

Classification: 419/41

Extruding:

(under subclass 38) Processes wherein the compaction is effected by forcing the powder through a restricted orifice under pressure.

(1) Note. Extrusion processes as here contemplated are sometimes referred as die expressing or aquirting.