JOINING OF HOLLOW ELONGATE MEMBERS

摘要

A heat fusion coupling element comprising: a hollow sleeve member (2) formed from a fusible polymeric material, the sleeve member having at least one electrical heating element (3, 4) disposed about its inner (5) and outer (7) surfaces, and having electrical terminals (10, 11) mounted on its outer surface, the terminals being connected to the or each electrical heating element and disposed at or adjacent an end of the sleeve member.