One-piece bottle top with deformable break-open seal

Details One-piece bottle top with deformable break-open seal One-piece bottle top with deformable break-open seal

1989-04-07

1990-04-10

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4134

Patent

active

049152440

ABSTRACT:
The one-piece twist-off bottle top, used mainly for fizzy or still soft drinks, has a deformable break-open seal (2) that features a succession of recesses (4) exhibiting oblique pyramidal shape. When the top is fitted initially to the bottle, certain of the surfaces of these pyramids are urged gently outward so that the internal diameter of the seal can be enlarged; when the cap is first twisted off, other surfaces are designed to resist on coming up against an annular bead (9) offered by the neck of the bottle, in such a way that the cap and seal are forced to separate.

REFERENCES:
patent: 3235115 (1966-02-01), Duke
patent: 3329295 (1967-07-01), Fields
patent: 4485934 (1984-12-01), Maguire
patent: 4592476 (1986-06-01), Yasada
patent: 4741447 (1988-05-01), John
patent: 4771904 (1988-09-01), Perne et al.

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