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


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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.