US PATENT SUBCLASS 100 / 253
.~.~.~.~ Piston operator actuated frame section


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}
252  DF  .~.~.~ Separable box frame sections {3}
253.~.~.~.~ Piston operator actuated frame section


DEFINITION

Classification: 100/253

(under subclass 252) Apparatus in which the means which causes the pressure surfaces to reciprocate relative to one another also causes separation of the chamber side wall parts from each other.