Single leak point cylinder

Abstract

A cylinder includes a substantially uniform wall thickness and a single potential leak point. A single uniform sheet of material is formed into the cylinder and includes a closed end and an open end. The open end includes a plurality of threads formed adjacent the open end having an interference fit with an adapter. The adapter is heated to a temperature greater than the cylinder to expand the adapter to a size allowing installation onto the threads of the cylinder. The adapter and cylinder are cooled and the threads of the adapter contract to tightly fit onto the threads of the cylinder and prevent removal of the adapter. The only potential leak point is then through the valve or other device receiving the contents of the cylinder.

Dependencies are inferred from the claim text.