US PATENT SUBCLASS 264 / 468
.~.~.~.~ Including differential fluid pressure application (e.g., vacuum, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

405  DF  DIRECT APPLICATION OF ELECTRICAL OR WAVE ENERGY TO WORK (E.G., ELECTROMAGNETIC WAVE, PARTICULATE, MAGNETIC, INDUCTION HEAT, SONIC, ELECTROSTATIC ENERGY, ETC.) {26}
464  DF  .~ Extrusion molding {9}
465  DF  .~.~ Utilizing electrostatic charge, field, or force (e.g., pinning, etc.) {1}
466  DF  .~.~.~ On film, sheet or web {2}
468.~.~.~.~ Including differential fluid pressure application (e.g., vacuum, etc.)

DEFINITION

Classification: 264/468

Including differential fluid pressure application (e.g., vacuum etc.):

(under subclass 466) Processes wherein a change in fluid pressure is applied.

SEE OR SEARCH THIS CLASS, SUBCLASS:

500+, and 335, for other art relating to the application of fluid pressure differential to the work.