US PATENT SUBCLASS 100 / 334
.~.~.~.~ Roll heated or cooled internally

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.~.~.~.~ Roll heated or cooled internally {2}
335  DF  .~.~.~.~.~> Temperature conditioning fluid flow passage in roll surface
336  DF  .~.~.~.~.~> Roll core has a temperature conditioning fluid flow passage

DEFINITION

Classification: 100/334

Roll heated or cooled internally:

(under subclass 327) Apparatus wherein the means for changing the temperature is provided within a pressure roll.

SEE OR SEARCH CLASS

62, Refrigeration, for an apparatus for removing heat from a substance by a change of phase of the coolant or refrigerant, especially

341, for a device for making a congealed product having a shaping press.

219, Electric Heating, the generic class for an electric heating device, especially

243+, for an electrical heating means combined with a press (e.g., electrically heated iron, etc.) where no significant structural details of the press or article being pressed are claimed.