US PATENT SUBCLASS 137 / 625.18
.~.~ Plural noncommunicating flow paths

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

561 R  DF  SYSTEMS {32}
625  DF  .~ Multi-way valve unit {12}
625.18.~.~ Plural noncommunicating flow paths {1}
625.19  DF  .~.~.~> Rotary plug

DEFINITION

Classification: 137/625.18

(under subclass 625) Devices having a plurality of distinct conduits or passages, flow through which is so controlled by a single valve unit that flow lines never unite.