Method of manufacture of a gated can lid with score at upper sur

Details Method of manufacture of a gated can lid with score at upper sur Method of manufacture of a gated can lid with score at upper sur

1975-10-24

1977-04-19

McGehee, Travis S.

Receptacles

Compartmented container

Compartment partition is movable or removable

220268, B21D 5144

Patent

active

040181782

ABSTRACT:
A can lid includes a pushdown gate formed in a panel portion below a narrow, underfolded rim at the opening in the lid. The outline of the gate is a disruptible score cut in the panel portion underneath the rim. This structure is essentially the same as that disclosed in the Klein-Harper U.S. Pat. No. 3,334,775. However, the score cut defining the outline of the gate is at the upper surface of the panel portion instead of being at the undersurface. A method of drawing and folding the lid material permits the score line to be cut before the underfolded rim is formed over the score cut.

REFERENCES:
patent: 3705563 (1972-12-01), Elser
patent: 3880316 (1975-04-01), Martella

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