US PATENT SUBCLASS 34 / 62
.~.~ With treated material cooling means

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
60  DF  .~ For diverse operations on treated material {4}
62.~.~ With treated material cooling means {4}
63  DF  .~.~.~> Internal rotary drum drier
64  DF  .~.~.~> Gravity flow-type drier {1}
66  DF  .~.~.~> Cooler chamber integral with or similar to drier
67  DF  .~.~.~> Atmospheric

DEFINITION

Classification: 34/62

(under subclass 60) Apparatus claiming in addition to drying means, means for cooling the treated material.

(1) Note. Where both the drying and cooling operations upon the material are by gas or vapor contact apparatus, the patents have not been placed in this subclass or the indented subclasses, but with the appropriate gas or vapor contact apparatus subclasses, even though one or more of the contacts with the solid material are claimed as cooling, when: (a) There are plural contact apparatus of the same kind with independent gas or vapor streams, even though some are and some are not heated; see, for example, subclasses 209+ and notes. (b) There is a single contact apparatus having plural similar means for causing contact of plural independent gas or vapor streams, even though some are and some are not heated; see, for example, subclass 223 and notes. (c) There is a single contact apparatus with means to selectively heat and prevent heating of the contact gas or vapor (as by-passing the heater), including the recirculating type apparatus; see, for example, subclass 219 and note.

(2) Note. Single types of apparatus within the class definition disclosed solely for cooling are with the appropriate type of apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

391+, and 428+, and see the notes thereto.

SEE OR SEARCH CLASS

165, Heat Exchange, 61+, for combined heating and cooling heat exchanger apparatus.

432, Heating,

77+, for residual heating apparatus combined with work cooling structure.