.~.~> 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.
