Receptacles – Closures – With closure opening arrangements for means
Patent
1976-08-09
1977-10-04
Hall, George T.
Receptacles
Closures
With closure opening arrangements for means
220277, B65D 4132
Patent
active
040519767
ABSTRACT:
Improved easy opening means for containers. Especially adapted to those used for liquids, including carbonated beverages, and permitting drinking from the container or pouring out contents. An important feature is attachment of closure to container after opening to avoid litter. Main feature is an openable segment in the top defined by a score line that extends almost all around its periphery, but interrupted at one point by an unscored section which provides hingeable attachment means to secure the segment to the top within the container after opening. Opening of the segment is accomplished by a manually operated elongated leverage lift tab which is hingeably secured to the top by a rivet which is positioned just outside of the segment and close to the score line. The outer longer lift end of the lift tab extends over the container top beyond the segment, and the shorter inner end extends partially over the segment, and comprises a downward pressure exerting extension. When the lift end is raised, the inner end exerts high downward pressure near the score line, thereby rupturing the score line with the rupture starting near the pressure point and extending on around the periphery, and the segment is thereby hinged down into the container where it remains attached to the top by the hingeable unscored section. The lift tab is then folded back out of the way to a position just above the container top, and ready for drinking from the can or pouring out the contents. Container top may be of ductile metal or of plastic. Primary objectives are the elimination of separate closure device that would cause litter, closure easier to open than heretofore, low cost, and no danger of a piece coming loose inside container.
REFERENCES:
patent: 3446389 (1969-05-01), Brown
patent: 3744666 (1973-07-01), Heffner
patent: 3744667 (1973-07-01), Fraze et al.
patent: 3836038 (1974-09-01), Cudzik
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