Closure seal for containers

Bottles and jars – Closures – Stopper type

Patent

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Details

215260, B65D 3900

Patent

active

042706661

ABSTRACT:
A container comprising a jar which has a cylindrical throat or neck and a closure including a closure body having a laterally extending circular rim of greater diameter than said neck and a cylindrical wall of less diameter than that of said neck depending from said rim and providing an annular space between said neck and closure wall, said wall having a grooved annular seat adjacent the outer end thereof, and an initially flat circular sealing gasket having an inner diameter slightly less than the innermost diameter of said seat and a thickness substantially equal to the width of the innermost surface of said seat, the outer diameter of said gasket being greater than that of the inner diameter of said neck of said jar and said gasket being disposed with the inner edge thereof in said seat in a manner to distort said gasket from a flat shape into a relatively frusto-conical shape of limited height and the outer edge extending upwardly toward said rim of said closure and outwardly a greater distance than the inner surface of said neck, whereby when said closure is in closed position in said neck the outermost portion of said sealing gasket has a flexible sealing engagement with the inner surface of said neck of said jar.

REFERENCES:
patent: 39327 (1863-07-01), Reid
patent: 481363 (1892-08-01), Macauley
patent: 521779 (1894-06-01), Boley
patent: 633468 (1899-09-01), McCarty
patent: 754977 (1904-03-01), Dopheide
patent: 1842226 (1932-01-01), Williams
patent: 2339827 (1944-01-01), White
patent: 2441918 (1948-05-01), Hoge
patent: 2982433 (1961-05-01), Chaplin

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