US PATENT SUBCLASS 53 / 436
.~.~ Compacting or stretching

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

396  DF  METHODS {22}
428  DF  .~ With contents treating {7}
436.~.~ Compacting or stretching {2}
437  DF  .~.~.~> Agitating (e.g., vibrating or jarring)
438  DF  .~.~.~> Before association with cover material {1}

DEFINITION

Classification: 53/436

Compacting or stretching:

(under subclass 428) Methods including subjecting the contents material to forces which crowd portions of the contents into a more confined space or which contract or elongate the contents without breaking.

SEE OR SEARCH THIS CLASS, SUBCLASS:

523+, for corresponding apparatus.

SEE OR SEARCH CLASS

100, Presses,

35+, for methods of compacting or compressing with presses.