US PATENT SUBCLASS 264 / 536
.~.~ Including removal of flash or sprue


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}
536.~.~ Including removal of flash or sprue


DEFINITION

Classification: 264/536

Including removal of flash or sprue:

(under subclass 523) Processes in which subsequent to deformation caused by differential fluid pressure flash or sprue is removed or part of the molded article is cutaway to form an aperture or two articles are separated by severing.

(1) Note. The severing or removal of flash or sprue may be by the application of differential fluid pressure.