US PATENT SUBCLASS 53 / 570
.~.~ Bag or sack

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

558  DF  APPARATUS FOR FORMING OR PARTIALLY FORMING RECEPTACLE AND SUBSEQUENTLY FILLING {5}
564  DF  .~ Forming by opening or setting up collapsed receptacle {6}
570.~.~ Bag or sack {1}
571  DF  .~.~.~> Magazine {2}

DEFINITION

Classification: 53/570

Bag or sack:

(under subclass 564) Apparatus in which the receptacle is a sack or pouch made of flexible material.

(1) Note. The opening mechanism may open the bag from either a completely or partially collapsed condition, but the mechanism must have at least a portion the sole utility of which is to expand the bag.

(2) Note. A filling spout or guide which also serves to expand a collapsed bag as it is slipped onto the spout is not considered a bag-opening device for this or indented subclasses, except when the empty bags are stored in a magazine. See (1) Note, subclass 571.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255+, for inserted forms or guides for articles which may serve to expand a bag placed thereon. See (2) Note, above.

SEE OR SEARCH CLASS

141, Fluent Material Handling, With Receiver or Receiver Coacting Means, appropriate subclasses, particularly

311+, and 390+ for filling heads or nozzles for fluent materials which may serve to expand a bag placed thereon. See (2) Note, above.