Screw closure

Details Screw closure Screw closure

1985-02-27

1986-04-29

Norton, Donald F.

Bottles and jars

Closures

Cap type

215343, 215352, B65D 5300

Patent

active

045851352

ABSTRACT:
A bottle closure comprises a cap moulded of a first plastics material includes a skirt having a step between a first inner surface portion and a second inner surface portion of the skirt, and a gasket of a second plastics composition covering a radially outer part of the inner surface of the cap end panel and also the first inner surface portion of the skirt and preferbly at least a part of the second inner surface portion, to achieve a combined side seal and top seal upon application of the closure to a bottle neck.

REFERENCES:
patent: 3110409 (1963-11-01), Chaplin
patent: 3253727 (1966-05-01), Hart
patent: 3827594 (1974-08-01), Leenaards
patent: 3868038 (1975-02-01), Hadley
patent: 4244481 (1981-01-01), Kornelis
patent: 4304744 (1981-12-01), Stroud
patent: 4331249 (1982-04-01), Banich
patent: 4462502 (1984-07-01), Luenser et al.

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