US PATENT SUBCLASS 261 / 100
.~ Porous sheet

Current as of: June, 1999
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261 /   HD   GAS AND LIQUID CONTACT APPARATUS

75  DF  CONTACT DEVICES {11}
100.~ Porous sheet {4}
101  DF  .~.~> Surface contact {3}
105  DF  .~.~> Gas-flow control
106  DF  .~.~> Liquid downflow
107  DF  .~.~> Capillary feed

DEFINITION

Classification: 261/100

Including a stationary sheet of porous material moistened with liquids in contact with gases.

SEE OR SEARCH THIS CLASS, SUBCLASS:

80,

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing,

34+, for slow diffusers, per se.

312, Supports: Cabinet Structure,

31+, particularly subclasses 31.05+.