US PATENT SUBCLASS 137 / 426
.~.~ Level adjustment or selection means

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}
426.~.~ Level adjustment or selection means

DEFINITION

Classification: 137/426

(under subclass 409) Apparatus in which the valve operating mechanism can be preset to respond at any one of a plurality of levels, by making appropriate changes in the connections between the valve and the float or any intermediate linkage or mechanism.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

234, for adjustable lever type actuators for valves, and see the search notes thereto.