US PATENT SUBCLASS 264 / 466
.~.~.~ On film, sheet or web

Current as of: June, 1999
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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.~.~.~ On film, sheet or web {2}
467  DF  .~.~.~.~> Plural electrodes spaced between the extruding means and the shaping surface
468  DF  .~.~.~.~> Including differential fluid pressure application (e.g., vacuum, etc.)

DEFINITION

Classification: 264/466

On film, sheet or web:

(under subclass 465) Processes wherein the extruded material forms on a portion of material of finite length, whose width is greater than its thickness and which may be of any geometric shape (e.g., triangle, circle, etc.).