US PATENT SUBCLASS 264 / 505
.~ Corrugating

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

500  DF  DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK {14}
505.~ Corrugating {1}
506  DF  .~.~> Of a tubular preform {2}

DEFINITION

Classification: 264/505

Corrugating:

(under subclass 500) Processes in which a portion of the workpiece is formed so as to have a cross section having a ternate ridges and grooves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282, for a process of creping or crinkling without the direct application of differential fluid pressure.

286+, for corrugation of a web without the direct application of differential fluid pressure.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

202+, and subclasses 205+ for corrugating of indefinite length work combined with a laminating operation; and 210 for corrugating and laminating to a noncorrugated lamina.