Receptacles – Closures – With closure opening arrangements for means
Patent
1997-01-31
1998-09-01
Cronin, Stephen
Receptacles
Closures
With closure opening arrangements for means
220906, B65D 1734
Patent
active
057998167
ABSTRACT:
A tab for use with an easy-open can end, which is made free from any protrusion with a cut edge thereon that would otherwise contact a finger or a lip of the user without a increasing the number of manufacturing steps to complete the tab. A tab having a body, a nose end with a tip, an opposite grip end, and an island formed within the tab body and attached to the nose end along a hinge, the island including a rivet hole for receiving a rivet on a can end panel to attach the tab to the end panel. The tab body is joined to a carrier strip, from which the tabs are made, by a joint formed in a tab making process. In a tab severing process, the joint is cut off to sever the tab from the strip, leaving a protrusion on the tab with a cut edge. The tip of the nose has a gap into which the protrusion can be bent or curled, to guard the cut edge, as the tab is moved to attach the island to the end panel with a rivet. When the tab is lowered in the downward passage, the swing arm moves to cause the curling surface to press the tab and curl the protrusion onto the tab.
REFERENCES:
patent: 4015744 (1977-04-01), Brown
patent: 4130074 (1978-12-01), Cudzik
patent: 4148410 (1979-04-01), Brown
patent: 4465204 (1984-08-01), Kaminski et al.
patent: 4930658 (1990-06-01), McEldowney
patent: 5385254 (1995-01-01), Hannon
Cronin Stephen
Dayton Systems Group, Inc.
Nauman Joseph G.
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