US PATENT SUBCLASS 137 / 625.11
.~.~ Sequential distributor or collector type

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}
625.11.~.~ Sequential distributor or collector type

DEFINITION

Classification: 137/625.11

(under subclass 625) Devices in which a valve unit has a number of outlet ports and a lesser number of inlet ports, usually one, or a number of inlet ports and a lesser number of outlet ports, some of the ports being opened or closed as others close or open.