US PATENT SUBCLASS 261 / 44.5
.~.~.~.~.~ Longitudinally movable air or mixture valve

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

19  DF  FLUID DISTRIBUTION {5}
38  DF  .~ Valved {8}
42  DF  .~.~ Multiple valves {5}
43  DF  .~.~.~ Connected {4}
44.1  DF  .~.~.~.~ Contact space {5}
44.5.~.~.~.~.~ Longitudinally movable air or mixture valve

DEFINITION

Classification: 261/44.5

Longitudinally movable air or mixture valve:

(under subclass 44.1) Apparatus having an air or mixture valve that moves in a direction substantially parallel to the direction of mixture or air flow.