US PATENT SUBCLASS 48 / 198.6
.~.~ Specified direction of gas travel through particle mass, e.g., fluidization, flow reversal, etc.


Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

197 R  DF  PROCESSES {15}
198.1  DF  .~ Manufacture from methane (natural gas) {6}
198.6.~.~ Specified direction of gas travel through particle mass, e.g., fluidization, flow reversal, etc.


DEFINITION

Classification: 48/198.6

Specified direction of gas travel through particle mass, e.g., fluidization, flow reversal, etc.:

(under subclass 198.1) Subject matter in which a gas involved in the process is described as traveling through a particle mass in a specified direction, e.g., vertically, downwardly, etc., or in opposite directions through the same particle mass at different stages of the process.

(1) Note. The mere statement that the particle mass is fluidized, or words to that effect, is sufficient for placement in this subclass.