US PATENT SUBCLASS 53 / 469-- .~.~ Flexible, expandable receptacle (e.g., bag, tube)

US PATENT SUBCLASS 53 / 469
.~.~ Flexible, expandable receptacle (e.g., bag, tube)

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

396	DF	METHODS {22}
467	DF	.~ Filling preformed receptacle and closing {5}
469		.~.~ Flexible, expandable receptacle (e.g., bag, tube)

DEFINITION

Classification: 53/469

Flexible, expandable receptacle (e.g., bag, tube):

(under subclass 467) Methods in which the cover member being filled is a flexible wall preformed receptacle such as a bag, pouch, tube, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

452+, for methods of forming flexible wall containers and subsequently filling.

459, for methods of opening collapsed bags and subsequently filling.

SEE OR SEARCH CLASS

141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

10, for methods of filling self- closing bags (i.e., valve bags).