US PATENT SUBCLASS 239 / 533.7
.~.~.~ Regulator* upstream of outlet port opens in direction of flow

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

533.1  DF  FLUID PRESSURE RESPONSIVE DISCHARGE MODIFIER* OR FLOW REGULATOR* {3}
533.2  DF  .~ Fuel injector or burner {1}
533.3  DF  .~.~ Having flow regulator* for reciprocating piston engine {7}
533.7.~.~.~ Regulator* upstream of outlet port opens in direction of flow

DEFINITION

Classification: 239/533.7

(under subclass 533.3) Device wherein the flow regulator is a valve located upstream of the fluid outlet; and it is responsive to, and opens in the direction of the fluid flow.