Easy opening ecology end with retained tear strips

Details Easy opening ecology end with retained tear strips Easy opening ecology end with retained tear strips

1974-06-10

1976-07-20

Price, William

Receptacles

Closures

With closure opening arrangements for means

220271, 220273, 220367, B65D 1720

Patent

active

039702120

ABSTRACT:
An easy opening ecology end having retained vent and pour tear strips is formed by an end wall having two lines of weaknesses. One line of weakness defines a vent opening while the other line of weakness defines a pour opening. Attached to each of the tear strips is a tab including a body member and end portions, the tab being attached to the respective tear strips by rivets. Each line of weakness terminates in a reversing curl to prevent continued complete separation of the tear strip. The lines of weakness, the reversing curves and the relative position and radii of the reversing curves cooperate to form a hinge line about which the ruptured tear strips are folded such that the tear strips are retained and folded back against the end wall. A protective bead protects the user against laceration, while the panel defining the pour opening is such that with the panel folded against the end wall, a protrusion is formed preventing the user from contacting the exposed sharp edge of metal of the retained tear strip. The protrusion, in the unruptured form of the container is a depression which functions to maintain the adjacent score line in compression while at the same time providing rigidity.

REFERENCES:
patent: 3221924 (1965-12-01), Harvey et al.
patent: 3313446 (1967-04-01), Harvey
patent: 3325043 (1967-06-01), Henchert et al.
patent: 3334778 (1967-08-01), Saunders
patent: 3442416 (1969-05-01), Nicholson
patent: 3448887 (1969-06-01), Geiger
patent: 3704805 (1972-12-01), Sheafe
patent: 3734338 (1973-05-01), Schubert
patent: 3744667 (1973-07-01), Fraze et al.
patent: 3795342 (1974-03-01), Ashton
patent: 3796344 (1974-03-01), DePhillips et al.

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