US PATENT SUBCLASS 137 / 573
.~.~ Fluid progresses by zigzag flow

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
571  DF  .~ Plural tanks or compartments connected for serial flow {5}
573.~.~ Fluid progresses by zigzag flow

DEFINITION

Classification: 137/573

(under subclass 571) Systems in which fluid passes through the tanks or compartments in a zigzag path.

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334+, for heating exchange systems having convoluted flow paths.

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193, Conveyors, Chutes, Skids, Guides, and Ways,

27+, for zigzag conveyor chutes.

251, Valves and Valve Actuation, 127, for flow paths with valves and zigzag type flow restrictors.