US PATENT SUBCLASS 137 / 441
.~.~.~ With refill 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}
434  DF  .~.~ Float arm operated valve {14}
441.~.~.~ With refill pipe

DEFINITION

Classification: 137/441

(under subclass 434) Apparatus which includes a pipe carrying a part of the flow through the float arm controlled valve out of the tank holding the liquid accumulation the level of which controls the float.

(1) Note. Many of the patents in this subclass are for refilling a toilet trap.

SEE OR SEARCH THIS CLASS, SUBCLASS:

561+, for distribution systems involving branch flow, especially subclasses 608+ for those having a single inlet and plural outlets.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons,

300+, for water closets of the tank type.