Receptacles – Closures – Removable closure retained by ductile in situ deformation
Patent
1975-02-24
1976-06-29
Price, William
Receptacles
Closures
Removable closure retained by ductile in situ deformation
220354, 215225, 215274, 220319, B65D 5502
Patent
active
039660826
ABSTRACT:
A rotatable annular collar adapted for use with a conventional overcap of the snap-fit type and a container having a cylindrical mouth, an inwardly directed annular groove extending completely around the wall of the container and an outwardly projecting annular bead positioned at or between the mouth of the container and the annular groove formed for releasable holding engagement with the snap-fit cap is provided. The snap-fit cap has a top panel, an annular skirt depending therefrom and a lift tab extending outwardly from the lower margin of the depending skirt which also has an inwardly projecting annular bead adapted to snap over the outwardly projecting annular bead of the container. The rotatable annular collar has an upstanding exterior wall member with an access gate therein, an inwardly extending flange connecting the exterior wall member and an interior annular rib member frictionally fitted to the annular groove of the container. Extending outwardly from the inner wall of the flange is a raised flat area which circumferentially extends at least the width of the gate whereby access to the bottom rim of the depending skirt is prevented and the flange is reinforced. In order to remove the snap-fit cover from the container, the annular collar is rotated by grasping the annular upstanding wall member and turning until the access gate is aligned with the lift tab. By insertion of a finger or thumb nail between the raised flat area and the bottom of the lift tab the snap-fit cover is forced upward and removed.
REFERENCES:
patent: 3669295 (1972-06-01), Horvath
patent: 3693820 (1972-09-01), Linkletter
patent: 3757979 (1973-09-01), Berghahn
patent: 3773204 (1973-11-01), Stroud
patent: 3811589 (1974-05-01), Thornton et al.
Carnahan Robert E.
Mead Johnson & Company
Moy Joseph M.
Price William
Uloth Robert H.
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