B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 17/34 (2006.01) B21D 51/44 (2006.01) B65D 17/32 (2006.01) B65D 17/347 (2006.01) B65D 17/353 (2006.01)
Patent
CA 2158379
An easy-open construction for a container wherein a panel principally defined by a rupturable score line in a wall is opened by operating a tab having one end adapted to press against the panel at a position spaced from the score line and overlying only a small portion of the opening left by the panel in its open position. The other end of the tab is liftable to open the panel and is returned directly to its original position next to the wall. The tab and panel remain secured to the wall after the panel has been moved to its open position. To ensure complete rupturing of the score line, particularly during initial rupturing past the 3:00 position, a bead is formed to extend beneath the tab to create a point of contact between the bead with the tab which is located towards the 3:00 position of the score line relative to another point of contact between the tab with the tear panel located further away from the 3:00 position. This another point of contact acts as a fulcrum for the first mentioned point of contact to generate a shearing force to propagate the rupture.
Ball Corporation
Clarke Milton W. III
Marks & Clerk
LandOfFree
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