Lock arrangement for closures

Details Lock arrangement for closures Lock arrangement for closures

1984-07-23

1985-12-10

Norton, Donald F.

Bottles and jars

Closures

Cap type

215330, B65D 4104

Patent

active

045573948

ABSTRACT:
A lock arrangement for closures and containers in which the container has a radially extending flange below the threads on the neck of the container and the closure extends below the flange in the closed position of the closure and container. The flange is larger than the inside of the closure which is made of a material which is deformable and has a good memory so that the portion of the closure below the radially extending flange is deformed radially outwardly and returns to its original molded position after the closure has been applied to the container to form an undercut skirt portion affording axial closing pressure between the closure and container and resists unthreading of the closure from the container.

REFERENCES:
patent: 2172544 (1939-09-01), Panter
patent: 2684168 (1954-07-01), McGinnis
patent: 2914206 (1959-11-01), Lowen
patent: 3262596 (1966-07-01), Zillmann
patent: 3971487 (1976-07-01), Montgomery

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