US Patent 7097067 Hermetically sealable container with internal partial vacuum making facilities

A hermetically sealable container with internal partial vacuum making facilities, comprising a base body with which a lid is hermetically associable, the lid having, at least in its peripheral region, an elastically flexible portion that has a groove arranged peripherally and open toward the edge of the base body. On the edge of the base body, at least one through hole is provided, arranged at a distance from the free border of the edge of the base body that is shorter than the depth of the groove.