US PATENT SUBCLASS 261 / 103
.~.~.~ Liquid downflow

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

75  DF  CONTACT DEVICES {11}
100  DF  .~ Porous sheet {4}
101  DF  .~.~ Surface contact {3}
103.~.~.~ Liquid downflow

DEFINITION

Classification: 261/103

Including auxiliary devices for directing liquids downward to the porous sheet.

SEE OR SEARCH CLASS

312, Supports: Cabinet Structure,

31.05, and indented subclass for liquid downflow porous sheet devices which form a material holding chamber and which are associated with significant chamber structure, such as shelves, racks, or doors.