US PATENT SUBCLASS 75 / 354
.~.~ Including comminution

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
343  DF  .~ Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension) {9}
354.~.~ Including comminution {4}
355  DF  .~.~.~> Directly from liquid mass (e.g., by atomizing, etc.)
356  DF  .~.~.~> And shaping or sintering prior to comminution
357  DF  .~.~.~> With step at 300 degrees C or greater {3}
361  DF  .~.~.~> Using nonmetallic material which is liquid under standard conditions

DEFINITION

Classification: 75/354

Including comminution:

(under subclass 343) Process in which a liquid mass or solid is comminuted to obtain a discrete powder form.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331+, for processes of producing solid particulate free metal

directly from liquid metal.

SEE OR SEARCH CLASS

241, Solid Material Comminution or Disintegration,

1+, for processes of comminuting a solid without a metallurgical step.