US PATENT SUBCLASS 251 / 301
.~ Gate

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

298  DF  PIVOTED VALVES {3}
301.~ Gate {1}
302  DF  .~.~> Bifaced

DEFINITION

Classification: 251/301

(under subclass 298) Devices wherein the valve moves transversely of the flow passage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212, for iris diaphragm type valves.

SEE OR SEARCH CLASS

137, Fluid Handling,

625.45, for multiway pivoted gate valves.