US PATENT SUBCLASS 34 / 138
.~.~.~ Gas or vapor conducting conduits in drum or receptacle

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

523  DF  APPARATUS {40}
108  DF  .~ Rotary drums or receptacles {7}
130  DF  .~.~ With gas or vapor flow for contact with treated material {5}
138.~.~.~ Gas or vapor conducting conduits in drum or receptacle

DEFINITION

Classification: 34/138

(under subclass 130) Apparatus wherein conduits for conducting the treating gas or vapor for contact with the material undergoing treatment are located within the drum or receptacle.

(1) Note. The conduits may be part of or attached to the drum walls.

SEE OR SEARCH THIS CLASS, SUBCLASS:

134, and 280+.