Dehnbare,schraubenfoermig gewundene elektrische Leitung

摘要

An extensible, helically coiled electrical lead including one or more electrical conductors, with an elastomeric covering of polyurethane alone or mixed with polyvinyl chloride; the covering being applied directly to the conductor as insulation therefor, as well as providing the resiliency required in extensible leads; or as a sheath for conductors insulated with thermoplastic resins.