Continental Can Company, Inc.

Harry A Peyser

John S Bozek

Anil U Patel

James V DePhillips

Edward J Herbst

An easy opening end closure for a container in which the end closure includes a panel having a pre-cut pour opening. The pour opening is sealed by a plastic closure having a portion permanently bonded to the underside of the end. A remaining portion is releasably adhered to the underside so that upon downward pressure on the closure, it is released and hinges about the permanently bonded portion. A tongue integral with the panel projects into the opening along the edge along which the flap hinges and is permanently bonded thereto.

Easy opening container with retained closure

An improved tooling configuration enables production of an end panel opening score line without loss of the enamel protective coating on the reverse side of the end panel. Current scoring methods frequently result in enamel loss, and hence, necessitate coating repair before the end panel may be attached to the can body. By controlling the angular relationship of the score punch and anvil, while simultaneously confining the displaced metal, the enamel which was previously applied to the panel is retained substantially in place with only a slight reduction in thickness. Punch angles of 90.degree. - 100.degree. and anvil angles of 25.degree. - 35.degree. have been found to be effective, with a punch angle of 90.degree. and an anvil angle of 30.degree. being optimum. The metal may best be confined and controlled by the simultaneous formation of an anti-fracture score concentric with, and radially inward of the opening score line.

Tooling arrangement for end closure scoring

An easy opening closure for a container in which the end panel is formed with a pre-cut opening. A plastic tab having a closure portion is pivotally secured to the panel for turning between a position overlying said opening to seal the same and a position away from the opening. The tab includes a finger grip portion encompassing the closure portion.

Non-detachable and reclosable easy opening container closure structure

A container end panel having a non-detachable flap portion partially severable from the panel to provide an opening. The flap portion is recessed below the remainder of the panel and is broken away by a fitment which fits into the recess. The fitment is adapted to be pushed inwardly and after rupturing the score between the panel and the flap functions to swing the flap inwardly about a hinge formed by the unscored metal connecting the flap to the panel. The fitment is pressed into the opening and snaps within the opening and provides a guard shielding the users finger from the raw edges at the tear edge about the opening. The invention is also directed to a formation of the inner edge of the ring to facilitate rupturing the score and thereafter swinging the panel inwardly.

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Olympia Fields, IL, United States of America

Harry A Peyser