US PATENT SUBCLASS 383 / 100
WITH VENTING OR VENTILATION MEANS


Current as of: June, 1999
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383 /   HD   FLEXIBLE BAGS

100WITH VENTING OR VENTILATION MEANS {3}
101  DF  .~> Fluid circulates between bag plies
102  DF  .~> Pervious material
103  DF  .~> Opening in bag material


DEFINITION

Classification: 383/100

WITH VENTING OR VENTILATION MEANS:

(under the class definition) Subject matter wherein the bag comprises either (1) means for relieving positive or negative pressure inside the bag (or bag structure), or (2) means which allow circulation of fluid (e.g., air) into and out of the bag.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45, for a bag having a content responsive closure and a vent.

SEE OR SEARCH CLASS

55, Gas Separation,

429, and Digest 2 for vacuum cleaner bags.

220, Receptacles,

203.01+, for a receptacle closure comprising a pressure responsive vent or valve.