US PATENT SUBCLASS 137 / 588
.~.~.~ Vent and inlet or outlet in unitary mounting

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

561 R  DF  SYSTEMS {32}
583  DF  .~ System with plural openings, one a gas vent or access opening {3}
587  DF  .~.~ Tank with gas vent and inlet or outlet {1}
588.~.~.~ Vent and inlet or outlet in unitary mounting

DEFINITION

Classification: 137/588

(under subclass 587) Systems in which the vent and the liquid passage are formed in a common mounting adapted to be attached to or removed from the supply container as a unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212, for unitary mountings for gas and liquid fluid flow passages where the liquid passage is an outlet and the vent is an inlet for gas under pressure.

SEE OR SEARCH CLASS

222, Dispensing,

400.7+, for unitary mountings applied to dispensers, the vent being a gas inlet for a displacing fluid, and subclasses 478+, especially subclass 479 for vents combined with dispensed material inlets or outlets.