US PATENT SUBCLASS 137 / 579
.~.~ Swinging outlet pipe or spout


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

561 R  DF  SYSTEMS {32}
577  DF  .~ Tank with movable or adjustable outlet or overflow pipe {3}
579.~.~ Swinging outlet pipe or spout


DEFINITION

Classification: 137/579

(under subclass 577) Systems in which the movable outlet comprises a pipe or spout which is mounted to swing with respect to the tank to control the level within the tank.

(1) Note. The outlet pipe may be external or internal with respect to the tank, but control of fluid flow depends on movement of the pipe rather than on valves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

615+, for articulated or swinging flow conduits, and see the search notes to subclasses 615 and 616.