US PATENT SUBCLASS 264 / 328.8
.~.~.~.~ With multiple injectors, mold cavities, or multiple steps of injection of material


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}
328.1  DF  .~.~.~ Introducing material under pressure into a closed mold cavity (e.g., injection molding, etc.) {9}
328.8.~.~.~.~ With multiple injectors, mold cavities, or multiple steps of injection of material


DEFINITION

Classification: 264/328.8

With multiple injectors, mold cavities, or multiple steps of injection of material:

(under subclass 328.1) Processes in which multiple injectors feed a single mold cavity, or a single injector feeds a series of connected mold cavities or a single mold cavity in a series of distinct steps.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250+, for processes of separately molding different portions of a single article.

328.13, for processes involving injection of a single charge of material at varying pressure.