CONTAINER CLOSURE WITH VENT OPENING MEANS AND METHOD OF FORMING THE SAME

A container wall or end closure is provided which has a hollow upwardly convex embossment formed in it, and at least one radially extending score line in an outer portion of the embossment which will be ruptured to form a vent opening in the closure when force is applied against the center of the em...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WILLIS, WILBURN C, CLAWSON, ROBERT G
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 HANDLING THIN OR FILAMENTARY MATERIAL MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PUNCHING METAL STORING TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	A container wall or end closure is provided which has a hollow upwardly convex embossment formed in it, and at least one radially extending score line in an outer portion of the embossment which will be ruptured to form a vent opening in the closure when force is applied against the center of the embossment. The container wall may further include an inclined wall formed therein around the periphery of the embossment and a thinned zone or band of material in such wall to facilitate rupture of the score in the embossment. A method of forming such a container closure is also provided.