US PATENT SUBCLASS 264 / 209.4
.~.~.~.~ Sizing to desired dimension

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

165  DF  FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8}
176.1  DF  .~ Shaping by extrusion {11}
209.1  DF  .~.~ Hollow article {5}
209.3  DF  .~.~.~ Reshaping product (extrudate) subsequent to extrusion {1}
209.4.~.~.~.~ Sizing to desired dimension {1}
209.5  DF  .~.~.~.~.~> Stretching extruded material

DEFINITION

Classification: 264/209.4

Sizing to desired dimension:

(under subclass 209.3) Processes wherein extruded product is reshaped to achieve specific dimensions.

(1) Note. For example, an extruded tube may be reshaped to a specific diameter or wall thickness.

(2) Note. To reshape to different configuration is not considered to be sizing, e.g., changing from a tubular shape to a rectangular shape is not sizing.