Receptacles – Closures – With closure opening arrangements for means
Patent
1997-07-03
2000-02-15
Cronin, Stephen K.
Receptacles
Closures
With closure opening arrangements for means
B65D 1734
Patent
active
060242396
ABSTRACT:
The present invention provides a stay-on-tab end closure having a displaceable tear panel defined by a frangible score with a sloping segment and a non-frangible hinge segment. A curvilinear bead is formed entirely in an exposed area of the central panel formed by a void region of the tab webbing. The nose of the tab has a generally asymmetric shaped outer edge with a second portion extending further over the tear panel toward the curvilinear transition zone of the score. The invention further provides a tab with an asymmetrical thickness, with a thickened portion adjacent the second scoreline segment, and further provides a bead segment positioned under a side portion of the tab nose adjacent the second segment of the score. The present invention also provides an end with a hinge region of the tab adapted to bend at a hinge line, the hinge line intersecting the central longitudinal axis of the tab at an oblique angle. The invention also provides a stepped profile of the panel outer edge with substantially parallel countersink walls and a chuck wall angularly extending from below the panel height.
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Forrest Randall G.
Miles Michael P.
Turner Timothy L.
American National Can Company
Cronin Stephen K.
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