US PATENT SUBCLASS 264 / 46.8
.~.~.~ Introducing preform into mold by thermoforming operation (e.g., vacuum forming, etc.)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

41  DF  PORE FORMING IN SITU (E.G., FOAMING, ETC.) {6}
45.1  DF  .~ Composite article making {7}
46.4  DF  .~.~ Shaping material and uniting to a preform or solidified layer {5}
46.8.~.~.~ Introducing preform into mold by thermoforming operation (e.g., vacuum forming, etc.)

DEFINITION

Classification: 264/46.8

(under subclass 46.5) Processes wherein the surface to be coated or filled is subjected to deformation caused by heat and a pressure differential.

(1) Note. Included herein is vacuum forming, etc.