US PATENT SUBCLASS 137 / 625.46
.~.~ Rotary valve unit


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}
625.46.~.~ Rotary valve unit {1}
625.47  DF  .~.~.~> Plug


DEFINITION

Classification: 137/625.46

(under subclass 625) Devices comprising a valve head which rotates about its axis and has a flow passage within it, and wherein two or more branched flow passages are controlled.