Receptacles – Closures – Removable closure retained by ductile in situ deformation
Patent
1981-04-20
1982-11-02
Hall, George T.
Receptacles
Closures
Removable closure retained by ductile in situ deformation
206508, 220307, B65D 4116, B65D 4118
Patent
active
043569307
ABSTRACT:
An upwardly open end portion of a plastic container straight sidewall is telescoped by an inverted U-shaped portion of a plastic engagement ring with a generally transverse, outward flange on the container sidewall snap interengaging with a similar engagement ring flange. An engagement ring U-shaped portion extends transversely inwardly having, in certain embodiments, either a simple or complex outer wall common with the inverted U-shaped portion and in all cases an interior wall spaced inwardly therefrom. An edge portion of a plastic cover overlies the engagement ring U-shaped portion and has a downward extension fitting therein divided into an exterior wall outwardly abutting the ring U-shaped portion outer or common wall and a transverse inward flange snap interengaging with a similar flange on the ring interior wall. The cover edge portion terminates inwardly at an interior wall which outwardly abuts the ring U-shaped portion interior wall and a cover transverse connecting part joins the edge portion interior wall vertically intermediate both the cover edge portion interior wall and the ring U-shaped portion interior wall. In the assembly, the engagement ring and cover are constructed to exert transverse pressure outwardly to outwardly abuttingly pressure seal between the cover edge portion and the engagement ring, and between the engagement ring and the container sidewall inner side. The cover edge portion terminates outwardly in a transverse flange spaced above the engagement ring and engageable by a tool for removing the cover from the engagement ring.
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Hall George T.
Miller Ralph A.
Roper Elvere
Roper Robert E.
Roper William H.
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