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Class 383/50 - Reversely folded portion of closure element


Subclass of Class 383 - Flexible bags
Definition: Subject matter wherein the supplemental closing feature
No. of patents: 10
Last issue date: 12/25/2007


NumberTitleIssue Date
7311442Air valve for a fillable poly bag
An air valve for a poly bag that permits the escape of air from the bag as it is filled by a filling tube. The air valve consists of a plurality of slitted openings in one top corner of the bag and a valve flap mounted in the poly bag near the slitted openings that ...
12/25/2007
6997858Side gusseted poly bag with a filling valve and its method of manufacture
A side gusseted poly bag with a filling valve and its method of manufacture including a tubular body with opposed side gussets defining front and rear panels, and a filling valve formed by folding the front and rear panels with the interconnecting gusset portion at ...
02/14/2006
6969195Package, particularly for packing industrial products
One describes a package, particularly for packing industrial products, comprising a product-holding body provided with a through-bore, a grip region associated to the body and a flow controlling and interrupting valve associated to the through-bore, the valve compri...
11/29/2005
5692546Method of loading a bulk cargo
A method for loading a bulk cargo into a flexible expandable liner. The liner has a body defining an inlet opening and an interior for holding the cargo. An inlet chute is connected to the liner body and extends through the inlet opening. The method inclu...
12/02/1997
5033867Flexible bag with pouring spout
In one embodiment, a flexible bag comprises an inner bag for storing product having a top end region provided with a channel flap. The flap comprises a flexible pouring spout closed above by a folded portion of the inner bag and closed below by a seal. In...
07/23/1991
4881825Container and a method as well as an assembly for its manufacture
In a container (1) of flexible material and including a tube-shaped blank divided into two opposite side walls (5) and two intermediate pairs of gusset walls (6) by means of gussets (2, 3), and having at least one block bottom (8, 9), a tightly sealed, ou...
11/21/1989
4316574Sleeve valve for flexible bags
A flexible paper bag suited for containing granular products includes an improved valve in a corner of one end thereof which is adapted to receive a filler spout of a product dispensing machine therein. The valve comprises a tubular plastic sleeve interpo...
02/23/1982
4166482Lubricated valve bag and method of lubricating valve spout
A valve bag with an opening in one corner adapted to receive a spout for filling the bag, the opening having an insert therein, which insert has a light coating of a lubricant on its inner surface, so that when the bag is slipped on the filling spout some...
09/04/1979
4085886Reclosable twin-Z-fold dispensing valve construction for a liquid containing film pouch
An automatically reclosable dispensing valve construction for a liquid-containing film pouch of the type comprising first and second flexible film walls or sides joined together at their peripheral edges. A twin-Z fold, incorporating both sides of the pou...
04/25/1978
3990628Plastic bag with zig zag plies
A plastic bag with zig zag plies provided with a tubular valve foil sealed on the one hand to an outwardly folded tubular foil part originally situated between two incisions along zig zag ply edges and on the other hand to an end seal of the tubular foil ...
11/09/1976
 
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