US PATENT SUBCLASS 137 / 286
.~ Movable riser actuated valve


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

272  DF  HYDRANT TYPE {15}
286.~ Movable riser actuated valve {1}
287  DF  .~.~> Reciprocating riser {1}


DEFINITION

Classification: 137/286

(under subclass 272) Apparatus in which the riser serves as the actuator for the valve, i.e., movement of the riser in a predetermined manner actuates the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

274, for spout-operated valves in water cranes.

275+, for rotating risers having laterally extending spouts.

616+, for distribution systems in which an articulated or swinging flow conduit actuates the valve, and see the search notes thereto.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation, 341+, and 349+ for valves operated by moving the casing or an extension thereof, including inlets and outlets.