US PATENT SUBCLASS 137 / 432
.~.~.~.~ Float surrounds inlet pipe

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}
429  DF  .~.~ Rectilinearly traveling float {1}
430  DF  .~.~.~ Float co-axial with valve or port {3}
432.~.~.~.~ Float surrounds inlet pipe

DEFINITION

Classification: 137/432

(under subclass 430) Apparatus in which the float surrounds the inlet pipe for the fluid the flow of which is controlled by the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

431, for similar arrangements in which the float comprises a spreader or anti-splash means.