Pull tab anti-rotation mounting

Details Pull tab anti-rotation mounting Pull tab anti-rotation mounting

1974-11-20

1976-03-02

Hall, George T.

Receptacles

Closures

With closure opening arrangements for means

B65D 4132

Patent

active

039412768

ABSTRACT:
An improved pull tab mounting arrangement for an easy open end closure member, characterized by the provision of improved pull tab positioning means for maintaining the pull tab in a desired orientation relative to the flap-defining score line. Two protrusions formed in the closure end panel prevent rotational displacement of the tab about the attachment rivet resulting from contact with the knock out pad during the filling and seaming operations or from improper handling subsequent to filling. The protrusions, which are symetrically disposed with relation to an end panel chord drawn along the axis of the flap, serve as anti-rotation abutments and may further serve as spacing means to prevent contact between the tab and the knockout pad. The protrusions may be disposed abutting the tab legs, interior and tangent to the circle of the interior of the tab ring or beneath the ring itself. In the last case, the ring is supported on the protrusions, which are nested within the channel formed by the inner and outer curls of the ring, the outer curl projecting into a notch formed in the walls of the protrusions.

REFERENCES:
patent: 3780902 (1973-12-01), Holc et al.

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