Patent ID: 7591286
Filing Date: 2009-09-22
Classification: H02G

Abstract:
1. An extruded elongate duct unit having a channel shape of constant cross section along the length thereof and two longitudinally extending edges, the duct unit being adapted to cooperate with an identical duct unit to form a closed duct therewith, wherein a locating formation in the form of a rebate or groove extends along one longitudinal edge of the duct unit and a cooperating locating formation selected from a co-operant lip, ridge and tongue extends along the other longitudinal edge such that the two longitudinally extending edges of two duct units may cooperate operatively to form an effective joint along the edges, wherein the duct unit has at least one integral longitudinally extending attachment formation configured to hold captive relative to the duct unit a plurality of complementary clamp elements adapted to operatively encircle a composite duct and hold the two constituent duct units in their duct defining relationship.