Metal can with lid and retaining ring

摘要

Improvement in a can of the type which comprises: a body portion (11); a neck portion (13) of reduced contour and having an upper end edge (13b) provided with an outer peripheral projection (13c) and defining the contour of an upper opening (A); a transition portion (14) joining the body portion (11) and the neck portion (13); and a lid (20) having a peripheral tubular portion (22) to be fitted in the interior of the upper opening (A) of the neck portion (13) and having a free upper edge (22b) carrying an outer circumferential rib (22c) under which is applied an annular gasket (30) to be seated onto the upper outer edge (13b) of the neck portion (13) upon the fitting of the lid (20) in the upper opening (A). The transition portion (14) may externally incorporate, in a single piece, a plurality of spaced apart longitudinal ribs (15) joining the transition portion (14) to an adjacent lower region (13a) of the neck portion (13).