초록 ▼

A closure for light gage steel drums made up of an internally threaded closure flange mechanically secured within a suitably formed container wall opening. The flange is formed with a cylindrical neck internally threaded throughout its lower extent and surrounded exteriorly by a polygonally shaped b

A closure for light gage steel drums made up of an internally threaded closure flange mechanically secured within a suitably formed container wall opening. The flange is formed with a cylindrical neck internally threaded throughout its lower extent and surrounded exteriorly by a polygonally shaped base. A resilient sealing gasket tightly surrounds the flange neck at its juncture with the flange base. A perforated drum stock section is formed to overlie and closely surround the flange neck and base in an improved torque-resisting manner with the upper end of the flange neck beaded outwardly over the surrounding drum stock. The closure is completed with the threaded engagement of a closure plug and application of an overlying tamper-resisting drum seal.

대표청구항 ▼

A container closure combination comprising a closure flange having an internally threaded upstanding cylindrical neck adapted for reception of a closure plug, a laterally extending noncircular base surrounding the lowermost end of said neck, a resilient sealing gasket tightly surrounding said flange

A container closure combination comprising a closure flange having an internally threaded upstanding cylindrical neck adapted for reception of a closure plug, a laterally extending noncircular base surrounding the lowermost end of said neck, a resilient sealing gasket tightly surrounding said flange neck and seated on said flange base, said flange being nested within a container wall section having an upstanding collar closely surrounding said flange neck, a container wall embossment at the base of said collar having a laterally extending portion overlying said flange base, a convexly contoured exterior surface formed within said laterally extending portion and a tamper-resisting seal securely affixed to said flange having a circular top wall surrounded by a depending skirt terminating in a lowermost free edge, the lower portion of said skirt being formed radially inwardly into engagement with said container wall collar with said free edge lying in close proximity to said convexly contoured embossment surface.