Container construction

A container, comprising a container body having an end portion defining an open end of said body, and closure means for closing said body open end, said closure means including a panel having an upright flange at the periphery of said panel which cooperates with the end portion of said body to define a single seam sealingly connecting the container body and panel to close said body open end, said single seam comprising:

• a first vertically extending wall portion on the end portion of said container body;
• a second wall portion extending upwardly and inwardly from the upper end of said first wall portion;
• a third wall portion extending upwardly and outwardly from the upper end of said second wall portion;
• first, second and third wall portions on the flange of said panel intimately overlying the inner surface of said body end portion and deformed to correspond respectively to the shapes of the first, second and third wall portions of said body end portion;
• a fourth wall portion on the flange of said panel intimately overlying the outer surface of the third wall portion of said body end portion and extending parallel thereto, said fourth wall portion having a terminal surface disposed in abutting relation with the outer surface of the second wall portion of said body end portion;
• and
• an arcuate shoulder interconnecting the upper end of said fourth wall portion with the upper end of the third wall portion of said flange, said shoulder overlying the terminal end of the third wall portion of said body end portion and having an outer extremity lying within a vertical plane defined by the outer surface of the first wall portion of said body end portion.