US PATENT SUBCLASS 285 / 129.1
.~ And having additional, integral fitting, branch, or coupling for a means such as a vent


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

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


DEFINITION

Classification: 285/129.1

And having additional, integral fitting, branch, or coupling for a means such as a vent:

(under subclass 125.1) Subject matter including one or more openings which function to admit or expel gases from a system.

SEE OR SEARCH CLASS

4, Baths, Closets, Sinks, and Spittoons,

209+, for ventilation of that art.

48, Gas: Heating and Illuminating,

108, for couplings combined with structure to provide gas mixing.

137, Fluid Handling, 176, for a liquid seal trap with an air-port, subclass 215 for anti-siphon devices to fluid handling systems, and subclasses 583+ for vent openings in fluid distribution systems. See the search notes thereunder.

261, Gas and Liquid Contact Apparatus,

76+, for injector type contact devices.

417, Pumps,

151+, for jet pumps.