US PATENT SUBCLASS 264 / 534
.~.~.~ Shaping is subsequent to expansion

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}
531  DF  .~.~ Including shaping by mechanical means other than fluid pressure during or subsequent to fluid pressure differential shaping {3}
534.~.~.~ Shaping is subsequent to expansion

DEFINITION

Classification: 264/534

Shaping is subsequent to expansion:

(under subclass 531) Processes in which the mechanical reshaping takes place after an expansion by differential fluid pressure.

(1) Note. Included herein are, for example, processes for giving a container a concave bottom by deformation of a flat or convex bottom.