US PATENT SUBCLASS 100 / 247
.~.~.~ Separable box head and box frame

Current as of: June, 1999
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100 /   HD   PRESSES

214  DF  RECIPROCATING PRESS CONSTRUCTION {26}
240  DF  .~ Box and piston type {6}
246  DF  .~.~ Movable or removable box section {2}
247.~.~.~ Separable box head and box frame {2}
248  DF  .~.~.~.~> Insert of false head
249  DF  .~.~.~.~> With guided motion {2}

DEFINITION

Classification: 100/247

(under subclass 246) Apparatus in which the pressure surface which is stationary relative to the chamber during the application of compressive force to the material and the side walls of the chamber are relatively movable for purposes other than the application of compressive force.

SEE OR SEARCH THIS CLASS, SUBCLASS:

244, for box and piston presses in which the box bottom is a piston, that is, the box frame contains two pistons.