US PATENT SUBCLASS 419 / 48
.~ Heat and pressure simultaneously to effect 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}
48.~ Heat and pressure simultaneously to effect sintering {4}
49  DF  .~.~> Hot isostatic pressing (HIP)
50  DF  .~.~> Hot rolling
51  DF  .~.~> Multiaxial (Not HIP)
52  DF  .~.~> Heating by electrical means other than radiant energy

DEFINITION

Classification: 419/48

Heat and pressure simultaneously to effect sintering:

(under subclass 1) Processes in which the particles are sintered by a combination of elevated temperature and pressure applied thereto at the same time.

SEE OR SEARCH THIS CLASS, SUBCLASS:

38, for processes in which the material to be sintered is pressed to shape prior to heating to effect sintering, and 31 for processes in which the sintered articles is pressed after heating.

SEE OR SEARCH CLASS

51, Abrasive Tool Making Process, Material, or Composition,

309, for similar processes involving the making of abrasive tools.

76, Metal Tools and Implements, Making,

101.1+, for similar processes involving making a tool blank. 219, Electric Heating,

149, for apparatus for briquetting powder metal involving bonding of the metal particles by means of heat generated by an electric current.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

78, for apparatus for forming articles by uniting associated particles of metallic elements, alloys or amalgams.