US PATENT SUBCLASS 137 / 416
.~.~ Quick acting

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

386  DF  LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS {11}
409  DF  .~ By float controlled valve {11}
416.~.~ Quick acting {4}
417  DF  .~.~.~> Pilot float released
418  DF  .~.~.~> Over center mechanism {1}
420  DF  .~.~.~> Trip mechanism {1}
422  DF  .~.~.~> Lost motion mechanism

DEFINITION

Classification: 137/416

(under subclass 409) Apparatus in which the float and/or the flow control means is operated during a shorter length of time than would be the case if the float and valve were free to respond continuously to the change in liquid level.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

75, for valve actuation of the snap action type, and see the search notes thereto, subclass 76 for valve actuators of the impact type, and see the search notes thereto, and subclasses 77+ for valve actuation involving lost motion, and see the search notes thereto.