ELECTROMAGNETIC SHIELDED SLEEVE

An electromagnetic shielded sleeve containing a multilayer composite material formed in such a way as to define at least one longitudinal channel configured to enclose and carry a cable. The multilayer composite material contains a first textile, an electromagnetic shielding material, and a second textile, where the electromagnetic shielding material is located between the first textile and the second textile. 1. An electromagnetic shielded sleeve comprising a multilayer composite material formed in such a way as to define at least one longitudinal channel configured to enclose and carry a cable , wherein the multilayer composite material comprises:a first textile;an electromagnetic shielding material; and,a second textile, wherein the electromagnetic shielding material is located between the first textile and the second textile.2. The electromagnetic shielded sleeve of claim 1 , wherein the electromagnetic shielding material is a continuous metal foil.3. The electromagnetic shielded sleeve of claim 1 , wherein the electromagnetic shielding material comprises a conductive textile.4. The electromagnetic shielded sleeve of claim 1 , wherein the electromagnetic shielding material comprises at least two layers of conductive material.5. The electromagnetic shielded sleeve of claim 1 , wherein the sleeve comprises at least one multilayer composite material in a strip shape having longitudinal edge portions claim 1 , wherein the longitudinal edge portions are joined to define the longitudinal channel.6. The electromagnetic shielded sleeve of claim 1 , wherein the multilayer composite material is formed in such a way as to define at least two longitudinal channels claim 1 , each configured to enclose and carry a cable.7. An electromagnetic shielded sleeve comprising a spacer fabric having an upper surface and a lower surface formed in such a way as to define at least one longitudinal channel configured to enclose and carry a cable claim 1 , wherein the spacer fabric ...

DIVIDED CONDUIT EXTRUSION DIE AND METHOD WITH JOINING FEATURES

An apparatus and method are provided for making a conduit divided into channels by one or more strip-shaped substrates. The channels may be used for cables, such as fiber optic cables, coaxial cables, electrical cables, electrical wiring, and the like. Each divided conduit provides channels that allow e.g., cables to be pulled through without snagging or excessive heat build-up due to friction. In addition, the divided conduits do not allow contact or alternation losses between adjacent cables in other channels of the conduit. 1. An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels , the apparatus comprising: a first point for introduction into the extrusion die of the polymeric material forming the conduit;', 'an exit for polymeric material to leave the extrusion die; and', 'a slot configured for receipt of a strip-shaped substrate, the slot extending in the flow direction along the extrusion die;, 'an extrusion die defining a flow direction for a polymeric material forming the conduit, the extrusion die comprising'}wherein the extrusion die is configured to extrude the polymeric material into at least two opposing portions, each of the two opposing portions having a pair of distal edges, and wherein along the flow direction the slot has an upstream section that is positioned outside of the distal edges and a downstream section that is positioned between the two opposing portions and adjacent to the distal edges.2. The apparatus for forming a conduit as in claim 1 , wherein at least two of the distal edges of the two opposing portions of polymeric material each comprise a joining element configured to attach the two opposing portions to form the conduit.3. The apparatus for forming a conduit as in claim 2 , wherein each joining element comprises a pair of fingers.4. The apparatus for forming a conduit as in claim 2 , wherein each joining element comprises a pair of diverging fingers extending towards the ...

DIVIDED CONDUIT EXTRUSION DIE AND METHOD

An apparatus and method are provided for making a conduit divided into channels by one or more strip-shaped substrates. The channels may be used for cables, such as fiber optic cables, coaxial cables, electrical cables, electrical wiring, and the like. Each divided conduit provides channels that allow e.g., cables to be pulled through without snagging or excessive heat build-up due to friction. In addition, the divided conduits do not allow contact or alternation losses between adjacent cables in other channels of the conduit. 1. An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels , the apparatus comprising: a first point for the introduction into the extrusion die of the polymeric material forming the conduit; and', 'a slot configured for receipt of the strip-shaped substrate, the slot extending along the flow direction of the extrusion die., 'an extrusion die having an exit and defining a flow direction along a flow path for a polymeric material forming the conduit, the extrusion die comprising'}2. The apparatus for forming a conduit as in claim 1 , wherein the extrusion die further comprises a second point for the introduction of polymer into the extrusion die claim 1 , the second point located along the flow direction downstream of the first point and upstream of the exit to the extrusion die.3. The apparatus for forming a conduit as in claim 2 , wherein the extrusion die further comprises a pair of wings positioned in an opposing manner along sides of the extrusion die and extending in the flow direction along the extrusion die claim 2 , the wings defining a wing start point along the flow direction that is located between the first point and the second point.4. The apparatus as in claim 3 , wherein the wings converge towards each other along the flow direction.5. The apparatus as in claim 3 , wherein the slot for the strip-shaped substrate is positioned outside of the wings upstream along the flow ...

DIVIDED CONDUIT EXTRUSION DIE AND METHOD FOR ONE OR MORE MATERIAL LAYERS

An apparatus and method are provided for making a conduit divided into channels by one or more strip-shaped substrates. The channels may be used for cables, such as fiber optic cables, coaxial cables, electrical cables, electrical wiring, and the like. Each divided conduit provides channels that allow e.g., cables to be pulled through without snagging or excessive heat build-up due to friction. In addition, the divided conduits do not allow contact or alternation losses between adjacent cables in other channels of the conduit. 1. An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels , the apparatus comprising: a first point for the introduction into the extrusion die of polymeric material forming a first polymeric layer of the conduit;', 'a second point for the introduction into the extrusion die of polymeric material forming a second polymeric layer of the conduit; and', 'a slot within the extrusion die, the slot configured for receipt of a strip-shaped substrate, the slot extending in the flow direction along the extrusion die., 'an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit, the extrusion die comprising'}2. The apparatus for forming a conduit as in claim 1 , wherein the second point is located along the flow direction downstream of the first point and upstream of the exit to the extrusion die.3. The apparatus for forming a conduit as in claim 1 , wherein the extrusion die is configured to extrude the polymeric material into at least two opposing portions claim 1 , each of the two opposing portions having a pair of distal edges.4. The apparatus for forming a conduit as in claim 3 , wherein along the flow direction the slot has an upstream section that is positioned outside of the distal edges and a downstream section that is positioned between the two opposing portions and adjacent to the distal edges.5. The apparatus for forming a conduit as in ...

PROCESS FOR FORMING A DIVIDED CONDUIT

A process for extruding a divided conduit comprising obtaining an extrusion die head, inserting a strip-shaped substrate into the extrusion die head such that the strip shaped substrate is located within the tip gap and extends at least partially out of the tip gap such that the longitudinal edges are located in the die gap, and flowing molten polymer through die gap, encapsulating the longitudinal edges of the strip-shaped substrate in molten polymer. The extrusion die head contains a tip region and a bushing. The tip region contains at least 2 tips separated by a tip gap. The bushing extends around the tip region and the distance between the tip region and the inner surface of the bushing is defined to be the die gap and the die gap varies around the bushing. 1. A process for extruding a divided conduit comprising: a tip region comprising at least two tips, wherein each tip has a cross-sectional shape comprising a curved portion and between 1 to 2 mating portions, wherein the tips are oriented such that the mating portions of each tip adjacent to the mating portions of adjacent tips and are separated by a distance defined to be a tip gap, and wherein the curved portions of the tips together in the tip region form a generally circular cross-sectional shape; and,', 'a bushing having an inner surface, wherein the bushing extends around the tip region, wherein the distance between the tip region and the inner surface of the bushing is defined to be the die gap, and therein the locations where the tip gap and the die gap intersect are defined to be the tip gap exits, wherein the die gap has a first width measured at the tip gap exit locations and a second width measured at the midpoint between the tip gap exit locations, wherein the first width is between about 10 and 75% larger than the second width;, 'obtaining an extrusion die head comprisingforming a strip-shaped substrate having at least two longitudinal edges, wherein the substrate is selected from the group ...

FABRIC AND DIE DESIGN FOR DIVIDED CONDUIT

A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels. The method contains obtaining an extrusion die configured to form the wall of the conduit and a slot configured for receipt of a strip-shaped fabric substrate and introducing a strip-shaped fabric substrate into the slot. The strip-shaped textile is air permeable and contains enlarged regions at the first and second longitudinal edges. Molten polymer is introduced at a first point in the extrusion die and at the first point the slot and the area configured to form the wall of the conduit are not in communication. The slot is exposed to the molten polymer at a point between the first point and the die exit forming the first polymeric layer of the conduit such that the first longitudinal and second longitudinal edges of the strip-shaped fabric substrate embed into the molten polymer. 1. A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels , the method comprising:obtaining an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit, wherein the die comprises an area configured to form the wall of the conduit and a slot having a thickness, a width, a first edge, and a second edge, wherein the slot configured for receipt of a strip-shaped fabric substrate, wherein the slot extends in the flow direction along the extrusion die, wherein the thickness of the slot varies along the width of the slot, wherein the thickness of the slot is greatest at the first edge and second edge of the slot;introducing a strip-shaped fabric substrate into the slot, wherein the strip-shaped fabric substrate comprises a first longitudinal edge and a second longitudinal edge, wherein the strip-shaped textile is selected from the group consisting of a woven, non-woven, and knit, wherein the strip-shaped textile is air permeable, and wherein the strip-shaped fabric substrate ...

FABRIC AND DIE DESIGN FOR DIVIDED CONDUIT

An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels. The apparatus contains an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit. The extrusion die contains a first point for the introduction into the extrusion die of polymeric material forming a first polymeric layer of the conduit, a second point for the introduction into the extrusion die of polymeric material forming a second polymeric layer of the conduit, and a slot within the extrusion die having a thickness, a width, a first edge, and a second edge. The slot is configured for receipt of a strip-shaped substrate and extends in the flow direction along the extrusion die. The thickness of the slot varies along the width of the slot and the thickness of the slot is greatest at the first edge and second edge of the slot. 1. An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels , the apparatus comprising: a first point for the introduction into the extrusion die of polymeric material forming a first polymeric layer of the conduit;', 'a second point for the introduction into the extrusion die of polymeric material forming a second polymeric layer of the conduit; and', 'a slot within the extrusion die having a thickness, a width, a first edge, and a second edge, wherein the slot configured for receipt of a strip-shaped substrate, wherein the slot extends in the flow direction along the extrusion die, wherein the thickness of the slot varies along the width of the slot, wherein the thickness of the slot is greatest at the first edge and second edge of the slot., 'an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit, the extrusion die comprising'}2. The apparatus of claim 1 , wherein thickness of the slot varies along the width of the slot in a step function.3. The apparatus of claim 1 , wherein ...

DISPENSING SYSTEM FOR ELONGATED ELEMENTS

A dispenser system containing a container and a single elongated element. The single elongated element is rotationally wound in a first direction into a hollow cylinder having a central axis. The hollow cylinder is located within the volume of the container and the single elongated element is unwound from the hollow cylinder from one of the annular bases. The single elongated element has a twist in a second direction opposite to the first direction such that when the single elongated element is unwound it has essentially no twist. 1. A dispenser system comprising:a container having an inner surface, an outer surface, and at least one opening, wherein the container is configured to enclose a volume;a single elongated element having two ends rotationally wound in a first direction into a hollow cylinder having a central axis, the hollow cylinder being a three-dimensional region bounded by inner and outer concentric cylindrical sections and two parallel annular bases perpendicular to the central axis, wherein the hollow cylinder is located within the volume of the container, wherein the hollow cylinder and container are configured such that the single elongated element is unwound from the hollow cylinder from one of the annular bases approximately parallel to the central axis, wherein the single elongated element has a twist in a second direction opposite to the first direction such that when the single elongated element is unwound it has essentially no twist.2. The disperser system of claim 1 , wherein the container is a box.3. The disperser system of claim 1 , wherein the container is a bucket.4. The dispenser system of claim 1 , wherein the elongated element is a tape element.5. The dispenser system of claim 1 , wherein the elongated element is a pull tape.6. The dispenser system of claim 1 , wherein the elongated element is rotationally wound onto a spool.7. The dispenser system of claim 1 , wherein the elongated element is stack wound into the hollow cylinder.8. ...

Winding system for elongated elements

A dispenser system containing a container and a single elongated element. The single elongated element is rotationally wound in a first direction into a hollow cylinder having a central axis. The hollow cylinder is located within the volume of the container and the single elongated element is unwound from the hollow cylinder from one of the annular bases. The single elongated element has a twist in a second direction opposite to the first direction such that when the single elongated element is unwound it has essentially no twist. A winding system containing a let off stand, a winding coordinator, and a wind-up stand. The left off stand contains a tape holder and a generally planar base which rotates in a first direction. The winding coordinator contains a generally planar section having an opening for an elongated element and rotates in a second direction opposite to the first direction.

Winding system for elongated elements

A winding system contains a let off stand, a winding coordinator, and a wind-up stand. The left off stand contains a tape holder and a generally planar base which rotates in a first direction. The winding coordinator contains a generally planar section having an opening for an elongated element and rotates in a second direction opposite to the first direction.

Conduit insert for optical fiber cable

A flexible innerduct structure (10) is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material (20, 22) that are joined along their longitudinal edges (24) to define a channel (14) through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features include the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, elongation, coefficient of friction, crimp resistance and compression recovery.

Innerduct structure having increased flexibility

Provided herein are flexible, low friction innerduct structures configured to contain at least one cable within a conduit. The innerduct structures, or conduit inserts, include one or more strip-shaped panels of flexible material that are joined to define at least one channel through which a cable can extend. The innerduct structures preferably are formed from a woven textile fabric having warp yarns that are monofilaments and fill yarns that are an alternating pattern of monofilament yarns and multifilament yarns. Such construction increases the flexibility of the fabric, as compared to previous innerduct fabrics, resulting in a reduction of the pulling force required to draw the cable through the innerduct and into position.

Conduit insert for optical fiber cable

A flexible insert for underground cable conduit

Conduit insert for optical fiber cable.

Conduit insert for optical fiber cable

A flexible innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features includes the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, elongation, coefficient of friction, crimp resistance and compression recovery.

Conduit insert for optical fiber cable

A flexible innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features includes the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, elongation, coefficient of friction, crimp resistance and compression recovery.

Conduit insert for optical fiber cable

A flexible innerduct structure is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material that are joined along their longitudinal edges to define a channel through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features includes the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, elongation, coefficient of friction, crimp resistance and compression recovery.

Zuführkanal für optische kabel

Zuführkanal für optische kabel

Zuführkanal für optische kabel

Flexible einführvorrichtung für unterirdisches kabelrohr

Conduit insert for optical fiber cable