US PATENT SUBCLASS 264 / 537
.~.~ Including injection forming of parison or portion thereof

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

500  DF  DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK {14}
523  DF  .~ Including application of internal fluid pressure to hollow finite length parison to expand same into conformity with female mold part {10}
537.~.~ Including injection forming of parison or portion thereof {2}
538  DF  .~.~.~> Arcuate or rotary movement of parison or workpiece from one work station to another
539  DF  .~.~.~> Including extrusion

DEFINITION

Classification: 264/537

Including injection forming of parison or portion thereof:

(under subclass 523) Processes in which the parison has at least a portion thereof formed by application of pressure which forces material into a closed mold cavity under pressure.