Composite can with compressed end to provide easy opening

Details Composite can with compressed end to provide easy opening Composite can with compressed end to provide easy opening

1984-02-14

1986-04-29

Hall, George T.

Envelopes, wrappers, and paperboard boxes

Paperboard box

End structure

229 55, 220 67, 220276, 493103, 493109, 493158, 493271, B65D 310, B65D 500, B65D 1300

Patent

active

RE0321273

ABSTRACT:
A composite container body having metal ends secured thereto by means of conventional crimping, and intended for opening by use of any of the various types of toothed driving wheel can openers presently in service. In a particularly preferred embodiment this is accomplished by compressing and densifying the end portion or portions of the composite container body a sufficient distance along its length to eliminate or at least minimize any interference between the toothed driving wheel of the can opener and the exterior of the container body. A weakening score line is preferably provided around the periphery of the metal end to be opened to even further reduce the resistance to cutting encountered by the cutter element as the toothed driving wheel advances said cutter element about the periphery of the container.

REFERENCES:
patent: 1212147 (1917-01-01), Peterson
patent: 1748865 (1930-02-01), Chaplin
patent: 1950173 (1934-03-01), Harris
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patent: 2633095 (1953-03-01), Magill et al.
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patent: 3073480 (1963-01-01), Henchert
patent: 3244313 (1966-04-01), Miles
patent: 3397809 (1968-08-01), Ellerbrock
patent: 3401863 (1968-09-01), Earl
patent: 3608774 (1971-09-01), Saunders
patent: 3668981 (1972-06-01), Turpin et al.
patent: 3882763 (1975-05-01), Ellerbrock et al.
patent: 4091718 (1978-05-01), Thornhill
patent: 4257316 (1981-03-01), Roder et al.

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