Lid-seal of metal container for powdered food or other material

Details Lid-seal of metal container for powdered food or other material Lid-seal of metal container for powdered food or other material

2005-02-08

2005-02-08

Pascua, Jes F. (Department: 3727)

Receptacles

Closures

With closure opening arrangements for means

C220S276000

Reexamination Certificate

active

06851568

ABSTRACT:
A lid-seal for a metal container constituted by fixing, through a beading process, on the upper edge of a metal container (1) made of sheet metal, an assembly formed by a plastic membrane (2) and a stamped metal ring (3). The plastic membrane (2) has a peripheral portion (9), followed internally by a recess having therein a ring-like recess (10) and a perimetral ring-like reinforcement (11) and with a lower ring-shaped thin breaking line (12) which breaks when pulled, after the breaking of the short breaking portion (13) of the incorporated pulling ring (14). The stamped metal ring (3) has a flat inner section (4) with a central circular opening (5) with the inner edge beaded inwards (6) and an elevation to form an upper bed (7) and a peripheral edge turned downwards (8) so that, jointly with the peripheral portion (9) of the membrane (2) it can be beaded in the container (1). The disclosed lid-seal assures the necessary sealing and the consequent quality of the packaged product, and the certainty that there will not be any possibility of hurting the fingers upon opening.

REFERENCES:
patent: 3163317 (1964-12-01), Biedenstein et al.
patent: 4393979 (1983-07-01), Ball et al.
patent: 5054642 (1991-10-01), Yoshida
patent: 5395005 (1995-03-01), Yoshida
patent: 6332552 (2001-12-01), Iwasaki et al.

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