US PATENT SUBCLASS 68 / 191
.~.~.~.~ Thermal flow

Current as of: June, 1999
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68 /   HD   TEXTILES: FLUID TREATING APPARATUS

3 R  DF  MACHINES {22}
147  DF  .~ Liquid flowing {5}
175  DF  .~.~ Fixed liquid receptacle {13}
184  DF  .~.~.~ With liquid pump {6}
191.~.~.~.~ Thermal flow {2}
192  DF  .~.~.~.~.~> Surgers
193  DF  .~.~.~.~.~> Tubular conductors

DEFINITION

Classification: 68/191

Machines wherein the receptacle is fixed and the flow of liquid or pumping action is induced by heat adapted to be applied externally and directly to the receptacle or to a conduit leading at its ends to different levels in the receptacle.

(1) Note. This subclass includes cages which fit within the receptacle and between which cages and walls of the receptacle there is an upward flow of liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for machines combined with heaters.