One-way valve score design

In flexible package, a one-way valve may include a substrate forming a portion of the flexible package and having at least one inlet score, a top sheet having at least one outlet score and secured thereto by an adhesive to define a valve chamber in which the substrate and the top sheet are not perma...

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Bibliographische Detailangaben
1. Verfasser:	Branyon, Jacob Donald Prue
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ACTUATING-FLOATS AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING COCKS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LIGHTING MECHANICAL ENGINEERING PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	In flexible package, a one-way valve may include a substrate forming a portion of the flexible package and having at least one inlet score, a top sheet having at least one outlet score and secured thereto by an adhesive to define a valve chamber in which the substrate and the top sheet are not permanently adhered to each other, and a liquid film within the valve chamber and adhering the top sheet to the substrate within the valve chamber until a pressure differential exists causing gases to pass through the one-way valve. The inlet scores and the outlet scores may be non-linear, or may be linear scores that are not parallel to each other to prevent the scores from collapsing on themselves and preventing gas flow when the package buckles.