Receptacles – Closures – Removable closure retained by ductile in situ deformation
Patent
1977-05-27
1979-01-09
Lowrance, George E.
Receptacles
Closures
Removable closure retained by ductile in situ deformation
220 85P, B65D 4310
Patent
active
041334485
ABSTRACT:
An overcap for engagement with the end of a cylindrical metal container, such as an aerosol container. The overcap has an enclosure portion and a circular lower edge portion for engaging the container. The lower edge portion is characterized by a radially inwardly extending annular ring at the lower edge which has an inner diameter less than the outer diameter of the snap bead which is formed in a dome of the container, a plurality of circumferentially spaced, crushable radial ribs extending outwardly from the annular ring sufficiently to interact with the container doubleseam when the annular ring is first snapped over the snap bead to "size" the overcap for engagement with the container, and a doubleseam-engaging flange extending radially outwardly from the enclosure and spaced above the annular ring in an axial direction by a distance about equal to the axial distance between the top of the doubleseam and the undercut which is formed in the container dome just below the snap bead.
REFERENCES:
patent: 3037672 (1962-06-01), Gach
patent: 3170602 (1965-02-01), Suellentrop
patent: 3225958 (1965-12-01), Frankenberg
patent: 3334769 (1967-08-01), Gach
patent: 3647107 (1972-03-01), LaGratta
patent: 3791551 (1974-02-01), Madeira
Lowrance George E.
S. C. Johnson & Son Inc.
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