US PATENT SUBCLASS 34 / 576
.~ With fluid current conveying of treated material

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

523  DF  APPARATUS {40}
576.~ With fluid current conveying of treated material {12}
577  DF  .~.~> Downward fluid flow impinging solid floor
578  DF  .~.~> Having tubular heat exchanger
579  DF  .~.~> With means to vary gas or vapor flow
580  DF  .~.~> With additional conveying means {1}
582  DF  .~.~> With specific gas distributor {3}
586  DF  .~.~> With means to agitate or comminute material
587  DF  .~.~> Gas or vapor presses material against screen or sieve
588  DF  .~.~> With baffle or deflector to adjust material flow
589  DF  .~.~> With plural treating zones or compartments {1}
591  DF  .~.~> With material separator {1}
593  DF  .~.~> With mechanical rotating element
594  DF  .~.~> Using rotary gas current

DEFINITION

Classification: 34/576

With fluid current conveying of treated material:

(under subclass 523) Subject matter wherein the treated material is moved by a fluid flow from one part of the apparatus to another, the arrangement being such that the material would not be so transported in the absence of the fluid flow.

(1) Note. Since this subclass usually of necessity includes drying plus material separation, it includes all fluid current type dryers, including plural operations on the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

359+, for the process of fluid current conveying.

376, for a device that recirculates material.

640+, for a device supporting or guiding a web, cord, or strand by a gas or vapor.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus, 467+, and 516+ for an enclosed modified atmosphere and fluid application apparatus respectively, including fluid moving means.

159, Concentrating Evaporators,

3, 4.1+, and 16.1+ for a similar device relating to a concentrating evaporator.

266, Metallurgical Apparatus,

251, for ore treating apparatus having a heated zone within which pulverulent material is suspended within a flowing fluid.

406, Conveyors: Fluid Current, and see the search notes under the main definition for other fluid current conveyors.

426, Food or Edible Material: Processes, Compositions, and Products,

94, for process of coating foods involving suspension of particulate material in a gaseous medium.

432, Heating,

58, for residual heating apparatus in which heating gas

conveys, agitates, scatters, or disintegrates the work.