Closure cap with sealing ring

Details Closure cap with sealing ring Closure cap with sealing ring

1979-07-24

1981-01-13

Norton, Donald F.

Bottles and jars

Closures

Cap type

B65D 5306

Patent

active

042444810

ABSTRACT:
An internally rotation-symmetrical closure cap for closing a container, comprising a closed end wall and a side wall, said end wall being internally provided with an integral annular channel provided with a sealing ring in co-operation with the upper rim of the container by means of which the container is sealed. The channel comprises side walls which have the shape of two facing undercuts, while the sealing ring is a ring formed in situ by gelation.

REFERENCES:
patent: 2339702 (1944-01-01), Isele
patent: 3144154 (1964-08-01), Puse
patent: 3169656 (1965-02-01), Weickmann
patent: 3428202 (1969-02-01), Asmus
patent: 3435976 (1969-04-01), Owens
patent: 4051972 (1977-10-01), Botkin

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