US PATENT SUBCLASS 264 / 210.5
.~.~.~ With temperature gradient across cross-section of workplace or heat treatment after all shaping

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

165  DF  FORMING CONTINUOUS OR INDEFINITE LENGTH WORK {8}
176.1  DF  .~ Shaping by extrusion {11}
210.1  DF  .~.~ And reshaping {6}
210.5.~.~.~ With temperature gradient across cross-section of workplace or heat treatment after all shaping

DEFINITION

Classification: 264/210.5

With temperature gradient across cross-section of workpiece or heat treatment after all shaping:

(under subclass 210.1) Process wherein a workpiece having its final shape is heated or held at an elevated temperature, whether in or out of the mold; or wherein the heating or cooling of a workpiece is nonuniform across the cross- section of the workpiece, e.g., the edges of a moving web are held at a temperature lower than the central portion, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

25+, for a shaping or molding process wherein the workpiece is heated by direct application of electrical or wave energy (e.g., infrared heat, etc.) to the work.

234+, and 235+, for other processes concerned with after-heating.