US PATENT SUBCLASS 425 / 369
.~ Means corrugating a preform


Current as of: June, 1999
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425 /   HD   PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS

363  DF  PRESS FORMING MEANS, PRESS RESHAPING MEANS, OR VULCANIZING MEANS IS ENDLESS SURFACE TYPE {9}
369.~ Means corrugating a preform {1}
370  DF  .~.~> Endless belt


DEFINITION

Classification: 425/369

(under subclass 363) Apparatus wherein a reshaping means creates accordion-like pleats or wrinkles or the like in a preform (generally a sheet or web) by distorting a section thereof transverse to its axis into a plurality of reversing curves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

336, for sets of shaping couples comprising an endless surface which corrugates running length work.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

461+, for laminating means combined with longitudinal bending means (e.g.., corrugating means, etc..) for running length work.