US PATENT SUBCLASS 264 / 211.1
.~.~ Centripetal extrusion


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}
211.1.~.~ Centripetal extrusion


DEFINITION

Classification: 264/211.1

Centripetal extrusion:

(under subclass 176.1) Processes wherein centripetal force is employed to convey the article forming material.

(1) Note. A method utilizing the normal force developed when a visco-elastic material is sheared between a rotating plate and a stationary plate, having a central orifice, to cause centripetal flow of the material between the disc and orifice and issuance in plasticized condition from the orifice is proper subject matter for this subclass.