US PATENT SUBCLASS 137 / 625.44
.~.~ Pivoted 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}
625.44.~.~ Pivoted valve unit {1}
625.45  DF  .~.~.~> Gate

DEFINITION

Classification: 137/625.44

(under subclass 625) Devices in which the valve disk or plug unit swings around the means by which it is mounted with respect to the valve seats or casing and thereby controls two or more branched flow passages.