Sealing gaskets for container closures

Details Sealing gaskets for container closures Sealing gaskets for container closures

1976-08-23

1977-07-19

Simpson, Othell M.

Bottles and jars

Closures

Cap type

215343, 53 16, 220289, B65D 5300, B65D 5304

Patent

active

040363880

ABSTRACT:
The invention relates to the gasketting of cap blanks, to be closed onto bottles or other containers.
The gaskets lie across the more or less flat top of the cap blank and the invention is concerned with the peripheral part of the gasket, i.e. that part which occupies the corner of the cap between the flat top and the skirt.
One kind of closing operation in which a gasketted cap blank is closed onto a bottle neck involves so-called "reform", i.e. a lateral pinching action at the top of the skirt. To aid closing the bottle cap symmetrically on the bottle, the peripheral part of the gasket includes a relatively flat step portion.

REFERENCES:
patent: 3344093 (1967-09-01), Strickman
patent: 3828963 (1974-08-01), Moller
patent: 3868038 (1975-02-01), Hadley
patent: 3883025 (1975-05-01), Jemmett

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