Container-closure assembly

Details Container-closure assembly Container-closure assembly

1978-09-08

1980-05-27

Norton, Donald F.

Bottles and jars

Closures

With means to facilitate closure removal

206222, B65D 4162

Patent

active

042046050

ABSTRACT:
A container-closure assembly. The container has a discharge opening, a locking flange of generally circular opening with a frusto conical side face diverging downwardly from the axial end face of the opening. A shaping surface is formed below the locking flange of non-circular cross section and has a maximum cross section less than the cross section of the locking flange and at least one cam member extends axially downwardly from the locking flange. The cap of the assembly has a top and a peripheral skirt portion engaging under the locking flange and extending at least to the juncture of the locking flange and shaping surface. The cap is of a deformable material whereby the skirt is shaped to a generally circular shape by the cam member upon relative rotation of the cap and container.

REFERENCES:
patent: 1724213 (1929-08-01), McDonnell
patent: 1814650 (1931-07-01), Waite
patent: 2069075 (1937-01-01), Lunn
patent: 2177396 (1939-10-01), Watson
patent: 3603469 (1971-09-01), Magni

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