US PATENT SUBCLASS 137 / 247.35
.~.~ Submerged inlet pipe end

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

247  DF  WITH LIQUID VALVES OR LIQUID TRAP SEALS {3}
247.11  DF  .~ Liquid seal in liquid flow line; flow liquid forms seal {8}
247.35.~.~ Submerged inlet pipe end {2}
247.37  DF  .~.~.~> Hinged seal bowl
247.39  DF  .~.~.~> Distinct seal bowl in flow line connected casing

DEFINITION

Classification: 137/247.35

(under subclass 247.11) Seals comprising a chamber having a distinct inlet pipe projecting thereinto and an outlet at a higher lever than the inlet pipe end opening.