US PATENT SUBCLASS 100 / 327
.~.~.~ Roll-type press

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.~.~.~ Roll-type press {6}
328  DF  .~.~.~.~> Electric heater
329  DF  .~.~.~.~> Means to independently heat or cool different sections of roll
330  DF  .~.~.~.~> Roll surface has particular thermally conductive feature
331  DF  .~.~.~.~> Plural stage or pass
332  DF  .~.~.~.~> Roll temperature conditioning means is external of roll, but in direct temperature conditioning contact with roll {1}
334  DF  .~.~.~.~> Roll heated or cooled internally {2}

DEFINITION

Classification: 100/327

Roll-type press:

(under subclass 305) Apparatus wherein the means for subjecting the material to compressive force is a rotatable cylinder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

155+, for a roll-type press without heating, cooling, or drying means.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

108+, for a dryer-type hollow drum or receptacle member through, over, by, or in which the material is carried to be treated and rotating about an axis.

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

498, for a laminating device with cooling means and subclasses 580+ for a device for adhesively bonding an article comprising a specialized laminating press, especially subclass 555 for a laminating press having a continuous roller feed, subclass 582 for a rotary-type laminating press, and subclasses 583.1+ for a heated laminating press. 162, Paper Making and Fiber Liberation, for a paper making operation that may involve a pressing step; especially

56, for a chemical process involving squeezing or compression, subclasses 205+ for the subsequent pressure treatment of a formed web, subclasses 224+ for a process of treating an article by pressure, subclass 305 for the combination of a mold for forming a paper article combined with pressing means, and subclasses 358.1+, 358.5, and 360.2 for a press and felt combination.

165, Heat Exchange,

89+, for a rotary drum-type heat exchanger.

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.

366, Agitating,

79+, 156.1+, and 318+ for a screw-type conveyor or agitator and subclasses 144+ for heating and cooling means in an agitator.

425, Plastic Article or Earthenware Shaping or Treating: Apparatus,

363, for a Class 425 roll-type press.

432, Heating, for the residual class for apparatus or related method for the generation of heat and its application to materials, where the heat generating means is more than nominally recited, especially 60, and 228 for the above combined with a roll.

492, Roll or Roller, the generic class for cylindrical work contacting surfaces, especially

46, for a roll having heat transfer means.