US PATENT SUBCLASS 419 / 38
.~ Consolidation of powder prior to sintering

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.~ Consolidation of powder prior to sintering {4}
39  DF  .~.~> Specific pressure or lack or pressure recited {1}
41  DF  .~.~> Extruding
42  DF  .~.~> Isostatic or Hydrostatic
43  DF  .~.~> Rolling

DEFINITION

Classification: 419/38

(under subclass 1) Consolidating of powder prior to sintering: Processes which include consolidating a mass of the powder at some stage prior to sintering the particles therein.

(1) Note. To be classified here the claimed process must recite the pressing or shaping in a significant manner, e.g., a specific pressure, pressure on all faces, pressure in increments, etc.