Container closure spout construction and method of forming same

Abstract

Container closure spout construction, e.g. for incorporation in a metal drum container, including a container wall portion having a spout aperture, and a closure spout member having a peripheral substantially transversely extending flange portion and, preferably integral therewith, an intermediate substantially axially extending tubular, e.g. internally threaded central hollow cylindrical, portion defining a closure spout opening within the flange portion and adapted to receive removably a cooperating closure element such as a plug or cap thereat, in which the spout member is disposed at the spout aperture in engagement with the adjacent marginal portion of the container wall portion thereat, and a high energy concentration beam, e.g. laser beam, produced weld seam, preferably continuously, interconnects the spout member with the container wall portion along such adjacent marginal portion; the weld seam preferably being provided by subjecting the site of interconnection of the component, e.g. metal, parts to the operative locally confined heat fusion action of a laser beam or electron beam sufficient to form a corresponding, e.g. metal, weld seam bond thereat.

Dependencies are inferred from the claim text.