US PATENT SUBCLASS 137 / 304
.~.~.~ Separate relatively movable valves with single actuator

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

272  DF  HYDRANT TYPE {15}
301  DF  .~ Protection against freezing {1}
302  DF  .~.~ Stop and waste {3}
304.~.~.~ Separate relatively movable valves with single actuator {2}
305  DF  .~.~.~.~> Unidirectional abutting connection between main valve or actuator and waste valve
306  DF  .~.~.~.~> With screw or gear in actuating mechanism

DEFINITION

Classification: 137/304

(under subclass 302) Apparatus in which the control valve and the drain valve are relatively movable but are operated by a single actuator.

SEE OR SEARCH CLASS

222, Dispensing,

445+, for nonrigidly connected cut-offs for stationary measuring traps in dispensers.

251, Valves and Valve Actuation,

631+, for cyclic valves, and see the notes to the definition of subclass 631.