US PATENT SUBCLASS 454 / 356
.~.~ Having exterior neck with enlarged, weather resistant cover


Current as of: June, 1999
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454 /   HD   VENTILATION

339  DF  HAVING OUTLET AIRWAY {7}
341  DF  .~ With air pump {9}
356.~.~ Having exterior neck with enlarged, weather resistant cover


DEFINITION

Classification: 454/356

Having exterior neck with enlarged, weather resistant cover:

(under subclass 341) Subject matter wherein the air exhausting means includes an outdoor portion with an upstanding air passage stem connected to an end cap or shelter which (1) has a larger dimension than the stem in a direction transverse to the direction of airflow through an exterior structural barrier, i.e., a wall or roof of the ventilated space and (2) assists in diminishing the deleterious effects of weather conditions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4+, for a cap closure for a chimney or stacktop.

94, for a railcar, bus, or trailer having an exterior cap closure for a vent.

275, for an inlet airway having a specific cover or shield for an exterior vent opening.

347+, for an outlet airway having an air pump and which may include a readily moveable cover.

355, for an outlet airway having an air pump and including a moveable access cover.

358+, for other outlet airways which may include a readily moveable cover. 367+, for other outlet airways having a specific cover or shield for an exterior vent opening, particularly subclass 368 for other outlet airways having an exterior neck with an enlarged, weather resistant cover.