US PATENT SUBCLASS 137 / 247.49
.~.~.~ Even diameter legs


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}
247.41  DF  .~.~ U-seals {3}
247.49.~.~.~ Even diameter legs {1}
247.51  DF  .~.~.~.~> Access opening


DEFINITION

Classification: 137/247.49

(under subclass 247.41) Seals wherein both legs of the U-bend have substantially uniform and like internal cross sections.