Linerless closure

Details Linerless closure Linerless closure

1984-07-12

1986-01-28

Norton, Donald F.

Bottles and jars

Closures

Cap type

215344, B65D 5300

Patent

active

045666032

ABSTRACT:
A linerless closure for use in sealing plastic bottles and jars is disclosed. The linerless closure has a series of concentric annular sealing rings for sealing contact with a bottle mouth. A ridge located between an inner and outer sealing flange provides for a minimum of two sealing surfaces and a maximum of three sealing surfaces with a bottle mouth. A buttress flange spaced inwardly of the inner sealing flange provides additional strength to the inner sealing flange for guiding an irregular bottle mouth to a sealing engagement.

REFERENCES:
patent: 2768762 (1956-10-01), Guinet
patent: 3074579 (1963-01-01), Miller
patent: 3215297 (1965-11-01), Acton et al.
patent: 3255907 (1966-06-01), Eddy
patent: 3463340 (1969-08-01), Lindstrom
patent: 3532244 (1970-10-01), Yates
patent: 3568871 (1971-03-01), Livingstone
patent: 3802590 (1974-04-01), Culver
patent: 3815771 (1974-06-01), Marks
patent: 3844439 (1974-10-01), Demers et al.
patent: 4143785 (1979-03-01), Ferrell
patent: 4276989 (1981-07-01), Hicks
patent: 4442947 (1984-04-01), Banich

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