Patent ID: 8381945

Claim:
A lidded container comprising: a container having a side wall, an integral closed bottom wall, and an open top defined by an annular rim; and a lid having a central section and an outer rim attachable to the annular rim of the container; said outer rim of the lid including an annular clamping section defined by spaced inner and outer walls, joined together at one end and non-joined at an opposite end, for receiving the annular rim of the container in the space between the walls: characterized in that: said lidded container further comprises an annular gasket between the annular rim of the container and the juncture of the inner and outer spaced walls of the annular clamping section of said lid; said central section of the lid is normally of an outwardly dome-shaped convex configuration; and said one end of the annular clamping section of the lid is integrally joined to said central section of the lid by an annular, elastically deformable juncture section effective (a) to increase the clamping action of said clamping section, and (b) the sealing action of said annular gasket with an increase in pressure within the container.