Abstract: An elongated sleeve structure for insertion and protection of elongated items within a duct is disclosed. The sleeve structure is formed from a flexible sleeve woven from warp and fill yarns to produce opposed layers in closely spaced relation. The layers have a common seamless edge and are joined along a second edge by a knit stitch formed by interlooping of successive traverses of the fill yarn which is common to both layers. The layers are of equal width and are resiliently separable into a spaced apart relationship defining a central space which accommodates the elongated items. A pull tape is positioned between the opposed layers for drawing the elongated items through the sleeve central space once the sleeve structure is positioned within the duct. Multiple sleeve structures may be joined together in an assembly using an attachment piece allowing a plurality of sleeve structures to be pulled simultaneously.

Abstract: A duct (10) is made up of a plurality of layers (11, 12, 13) of pliant material. The layers (11, 12, 13) are attached by stitching (20, 22) to form pockets (23, 24) between adjacent layers. One of the layers (11) is wider than the others and extends over the lateral edges (17, 19) of those layers (12, 13), and when the stitching (22) is applied, a loop (21) is formed. The loop (21) receives a strength member (26) which may be engaged by a clamp (31) carried by a bracket (34) which may be attached to a utility pole (30) to carry the duct (10) overhead. In another embodiment, a duct (40) includes enclosed loops (41, 42, 43) forming pockets (50, 51, 52). Stitching (54) connects the loops (41, 42, 43) and forms another loop (55) to receive a strength member (56). In yet another embodiment, the layers (61, 62, 63 and 64) are of different lateral widths, and the longest layer (64) extends around one of the edges of the other layers (61, 62, 63) to form a loop (71) when stitching (65) is applied.