Bend-resistant foil container

A foil container formed from a single sheet of metal about orthogonal longitudinal and transverse axes, comprising:

• a generally rectangular bottom panel having a peripbery;
• a continuous wall panel encompassing said bottom panel and extending upwardly and outwardly from said bottom panel, said continuous wall panel forming a pair of opposing side walls and a pair of opposing end walls, said end walls bridging said side walls, said side walls being at least as long as said end walls;
• and
• a continuous rim encompassing an upper edge of said continuous wall panel and projecting laterally outwardly therefrom;
• said bottom panel forming a plurality of closely spaced, concentric non-circular elliptical ribs, said elliptical ribs occupying a substantial portion of said bottom panel, said elliptical ribs having respective centers coinciding with a center of said bottom panel, an outermost one of said elliptical ribs being located in close proximity to said pair of opposing side walls, an innermost one of said elliptical ribs being located in close proximity to the center of said bottom panel, said bottom panel also forming a pair of outer rib structures generally occupying corners of said bottom panel and located outside said outermost one of said elliptical ribs, each of said outer ribs structures including a curved portion and a straight portion defining closed loops at respective ends of said bottom panel, said curved portion having approximately the same curvature as said elliptical ribs and being concave with respect to the center of said bottom panel, said straight portion conforming to a portion of said periphety of said generally rectangular bottom panel.