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

Abstract: A closure arrangement for a can of the type presenting a tubular body (10), with a circular or polygonal cross section, which is inferiorly closed and comprises: a peripheral side wall (11) provided with an upper edge (12); and a structural ring (13) internal to the tubular body (10) and which is hermetically united to the peripheral side wall (11) in order to define an upper opening (14) of the can and a seat (15) for the seating of a sealing element (20), the structural ring (13) being defined by a circumferential rib (16), formed by a recess in the peripheral side wall (11) which is axially spaced back in relation to the upper end (12) of the latter and projecting radially into the tubular body (10).

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

Abstract: A can has a flange extending inwardly from its vertical wall and has a downwardly extending lateral wall that defines an opening, and the free lower end of said lateral wall has a first rib therearound of open tubular shape of part of a circle. A lid for fitting into and sealing the can opening has a lateral wall therearound with a second rib at its free upper end to engage the can flange, a central wall portion below the second rib to engage the flange lateral wall that defines the opening, and a recess therearound below the central portion having the shape of part of a circle corresponding to that of the can first rib. The can first rib fits into the recess in an engaging interference fit.