US PATENT SUBCLASS 239 / 41
.~.~.~.~ To porous distributor to atmosphere

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

34  DF  SLOW DIFFUSERS {9}
37  DF  .~ Gravity flow of liquid from supply holder {3}
39  DF  .~.~ Barometric flow to secondary holder {2}
40  DF  .~.~.~ Drip discharge from secondary holder {1}
41.~.~.~.~ To porous distributor to atmosphere

DEFINITION

Classification: 239/41

(under subclass 40) Apparatus provided with a foraminous or liquid permeable element exposed to the ambient atmosphere and in the path of the drop-by-drop discharge from the auxiliary reservoir.