Forbedret skj°t for sammenkopling av ekstruderbare segmenter

摘要

A joint is disclosed for connecting extruded segments to form a container, such as a pressure vessel for storing liquid propane. In cross section, joint includes a pair of symmetrical tabs, each tab configured at the end of adjacent arcuate outer wall segments. Tabs are configured for contiguous engagement to form a boss having a proximate neck portion and a distal body portion. Joint also includes a retaining member configured at the end of an internal web segment. Retaining member is configured to capture boss. A sealing weld is utilized to seal the adjacent tabs at exposed seam.