Receptacles – Closures – Removable closure retained by ductile in situ deformation
Patent
1975-07-30
1976-05-04
Hall, George T.
Receptacles
Closures
Removable closure retained by ductile in situ deformation
206508, B65D 4116, B65D 4118
Patent
active
RE0287970
ABSTRACT:
A coverall lid or closure for gripping and sealing engagement with the bead of a cuplike container. The lid includes a central panel which is connected to a circumferential cavity by means of a corrugated ring. The cavity is adapted to receive the bead of the container and abut the bead in sealed engagement. A conical skirt extends downward and outward from the lower edge of the cavity. The upper portion of the skirt and the lower portion of the cavity form a waist and this waist is interrupted by a series of circumferentially spaced flutes. The portion of the skirt between the flutes act as lands, each land having a decreasing circumferential extent from a lower portion to an inner portion thereof to facilitate flexing of the lands radially outward when engaged by the container bead. The lower portion of the cavity is moveable into position beneath the bead to grip the latter when the lid is fitted on the container.
REFERENCES:
patent: 2922563 (1960-01-01), Aldington
patent: 3193130 (1965-07-01), Miller
patent: 3353708 (1967-11-01), Davis
patent: 3384265 (1968-05-01), Frank
patent: 3632016 (1972-06-01), Bozek
patent: 3895736 (1975-07-01), Swett
Hall George T.
Solo Cup Company
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