US PATENT SUBCLASS 264 / 551
.~.~.~ Simultaneous formation of plural articles

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}
544  DF  .~ Starting material is nonhollow planar finite length preform or product is finite length {6}
550  DF  .~.~ Including use of male part to stretch heated preform which is formed by a female mold which determines shape of work {1}
551.~.~.~ Simultaneous formation of plural articles

DEFINITION

Classification: 264/551

Simultaneous formation of plural articles:

(under subclass 550) Processes in which a plurality of deforming members act to deform or stretch a plurality of sheets or a number of locations on a single sheet.