Plastic screw cap for closing containers

Details Plastic screw cap for closing containers Plastic screw cap for closing containers

1996-10-22

1998-06-09

Cronin, Stephen

Bottles and jars

Closures

Cap type

215341, 215DIG1, B65D 5304

Patent

active

057622191

ABSTRACT:
A plastic screw cap for closing a container, including a cup composed of a disk-like portion and a cylindrical wall that protrudes from the rim of said disk-like portion and has an internal thread that is adapted to engage a corresponding thread of the container, the cap further comprising an annular lip that protrudes from the disk-like portion concentrically with respect to the cylindrical wall, the annular lip acting as a shoulder for a sealing liner, so that the liner, when the cap has been applied to the container, frontally and externally engages the rim of the mouth of the container.

REFERENCES:
patent: 3022918 (1962-02-01), Smith
patent: 4076152 (1978-02-01), Mumford
patent: 4407422 (1983-10-01), Wilde et al.
patent: 4462502 (1984-07-01), Luenser et al.
patent: 4629083 (1986-12-01), Druitt
patent: 4668458 (1987-05-01), Whitney
patent: 4721221 (1988-01-01), Barriac
patent: 4957211 (1990-09-01), Ekkert et al.
patent: 5064084 (1991-11-01), McBride et al.
patent: 5285913 (1994-02-01), Morton
patent: 5462187 (1995-10-01), Gregory et al.

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