Easy open container end closure

Details Easy open container end closure Easy open container end closure

1986-09-10

1987-08-18

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

220269, B65D 1734

Patent

active

046871160

ABSTRACT:
An easy open container end closure utilizes a pair of angled force directing score lines to direct an upward closure opening force which is applied to a pull ring or pull tab to an initial break line of finite length. The force directing score lines allow the container lid to pucker and to direct the applied opening force to the initial break line. Once this line has severed, continued lid separation acts in shear at two points of separation. The result is a container end closure which requires substantially less opening force than do prior art devices.

REFERENCES:
patent: 3172558 (1965-03-01), Wilkinson
patent: 3494500 (1970-02-01), Foster
patent: 3858753 (1975-01-01), Brautigam
patent: 4014455 (1977-03-01), LaCroce
patent: 4253582 (1981-03-01), Shields
patent: 4324342 (1982-04-01), Yamaguchi et al.
patent: 4446985 (1984-05-01), Dickson
patent: 4467938 (1984-08-01), Allen
patent: 4605141 (1986-08-01), Won

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