Container and lid

A container, comprising in combination a container body including an upper wall portion having a predetermined thickness and comprising an upwardly converging section and a substantially upright section above the converging section and with which the converging section is unitarily integrated;

• a neck portion axially spaced from said upper wall portion and having substantially said predetermined wall thickness;
• a first radially outwardly extending flange unitarily integrated with the substantially upright section of said upper wall portion of said container and with said neck portion, said first flange having an upper surface and an axial thickness which is equal to substantially twice the thickness of said predetermined thickness;
• a lid comprising an external wall surrounding said neck portion and which includes a second radially outwardly extending flange having a lower surface abutting against the upper surface of said first flange, said external wall being circumferentially complete so as to insure a uniform distribution of load applied to said wall and resulting from forces acting axially upon said container;
• and an annular connecting element operative for urging said first and second flanges together into alignment in the axial direction of the container and for uniformly clasping the flanges to thereby eliminate undesirable local deformation of said element due to the same forces and thus to insure permanent sealing closure of the container by said lid.