US PATENT SUBCLASS 239 / 108
.~.~.~ With separate fluid reacting surface

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

104  DF  WITH CLEANING MEANS, DRIP COLLECTING, WASTE DISPOSAL OR SOIL PREVENTING GUARDS OR SHIELDS {4}
106  DF  .~ Nozzle cleaner, flusher or drainer {5}
107  DF  .~.~ With means for enlarging spray openings beyond normal operating position {1}
108.~.~.~ With separate fluid reacting surface {1}
109  DF  .~.~.~.~> Reduction of fluid pressure affects opening (e.g., self-draining showers)

DEFINITION

Classification: 239/108

(under subclass 107) Apparatus having a motor surface in addition to or as a separate part of outlet forming surfaces or valving means for assisting in the flushing or draining operation by enlarging the escape ports.