US PATENT SUBCLASS 100 / 336
.~.~.~.~.~ Roll core has a temperature conditioning fluid flow passage

Current as of: June, 1999
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100 /   HD   PRESSES

70 R  DF  WITH ADDITIONAL TREATMENT OF MATERIAL {6}
92  DF  .~ Heating, cooling, or drying {4}
305  DF  .~.~ In press {4}
327  DF  .~.~.~ Roll-type press {6}
334  DF  .~.~.~.~ Roll heated or cooled internally {2}
336.~.~.~.~.~ Roll core has a temperature conditioning fluid flow passage

DEFINITION

Classification: 100/336

Roll core has a temperature conditioning fluid flow passage:

(under subclass 334) Apparatus wherein the means for changing the temperature includes a heated or cooled gas or liquid which is passed through a conduit within the hollow center of the means for subjecting the material to compressive force roll in order to provide heat transfer between the roll and the material being pressed.