Sideseal closure cap and sealed package

Details Sideseal closure cap and sealed package Sideseal closure cap and sealed package

1975-06-02

1976-06-15

Norton, Donald F.

Bottles and jars

Closures

Cap type

215 31, 215352, B65D 4122

Patent

active

039631427

ABSTRACT:
An improved sideseal closure and package are described in which a cut rubber gasket is used in a metal closure shell in a closure cap which is pressed onto containers for forming a sideseal. The closure cap has an integral cover and depending metal skirt with an inwardly facing channel formed in the lower portion of the skirt for receiving the cut rubber sealing gasket. The channel includes an inwardly directed bead at its top above the gasket for assisting in retaining the gasket in place in the closure cap. A preferred gasket cross-section is described for minimizing rolling of the gasket during cap application. A preferred finish for the glass container provides a slightly concaved sealing surface for engaging the gasket which is positioned downwardly from the container rim below a flared and slightly concaved guiding surface between the container rim and the container sealing surface.

REFERENCES:
patent: 651312 (1900-06-01), Lorenz
patent: 697491 (1902-04-01), Kalling
patent: 1244495 (1917-10-01), Hammer
patent: 1998870 (1935-04-01), Hammer
patent: 2030062 (1936-02-01), Greene
patent: 2633262 (1953-03-01), Acton
patent: 2731165 (1956-01-01), Hohl
patent: 3005563 (1961-10-01), Stover

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