US PATENT SUBCLASS 264 / 320
.~.~.~ Reshaping solid work or introducing solid work into mold cavity

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
299  DF  .~ Shaping against forming surface (e.g., casting, die shaping, etc.) {10}
319  DF  .~.~ Applying heat or pressure {6}
320.~.~.~ Reshaping solid work or introducing solid work into mold cavity {5}
321  DF  .~.~.~.~> Sponge-like or foamed work
322  DF  .~.~.~.~> Initially softening workpiece
323  DF  .~.~.~.~> Sliding motion between material and mold surface (extruding finite articles)
324  DF  .~.~.~.~> Woven or felted sheet-form work
325  DF  .~.~.~.~> Utilizing closed mold cavity {1}

DEFINITION

Classification: 264/320

(under subclass 319) Processes in which the material shaped is (1) a self-sustaining preform throughout the reshaping operation or (2) is a self-sustaining preform when placed into a mold.

(1) Note. Solid particulate molding material which is handled or charged to the mold as a fluent mass is not included within the scope of this and indented subclasses, however, solid particles or pieces which are placed, handled, or charged individually are considered self-sustaining preforms or bodies for purposes of this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

107, for reshaping a solid preform to form sound grooves on its surface.

112, for spheroidizing or rounding of particles in absence of a mold or shaping surface.

230, for reshaping of a solid preform by heating to release stress, e.g., elastic memory.