US PATENT SUBCLASS 285 / 129.2
.~.~ Plus a bend, flange, pocket, or chamber for antisiphon

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

125.1  DF  FOR BRANCHED PATH {8}
129.1  DF  .~ And having additional, integral fitting, branch, or coupling for a means such as a vent {1}
129.2.~.~ Plus a bend, flange, pocket, or chamber for antisiphon

DEFINITION

Classification: 285/129.2

Plus a bend, flange, pocket, or chamber for antisiphon:

(under subclass 129.1) Subject matter including means, generally a particular air chamber or arrangement of vent openings, for preventing the siphoning of trap liquids-seals upstream of the claimed coupling.