Pushable cable
View Patent ↗A cable assembly may have a conductor core and a binding element. The binding elements may be configured helically around the conductor core. In addition, the binding element may be configured to, when the cable assembly is pushed through a conduit having at least one sweep, eliminate buckling of the cable assembly.
1. A cable assembly comprising:
a conductor core; and
a binding element configured helically around the conductor core, the binding element configured to, when the cable assembly is pushed through a conduit having at least one sweep, eliminate buckling of the cable assembly and cause a first pushing force on the cable assembly having a magnitude less than a second pushing force on the cable assembly corresponding to pushing the cable assembly through the conduit without the binding element on the conductor core, wherein the binding element comprises:
a substantially round wire, and
a coating material extruded around the substantially round wire configured to cause the binding element to have a substantially round cross-section and configured to cause the substantially round wire to be substantially at the center of the binding element, the coating material including a lubricating material configured to migrate or permeate toward an exterior of the coating material and to excrete onto an exterior surface of the binding element, wherein the exterior surface of the binding element having the excreted lubricating material is in contact with and configured helically around the conductor core.
2. The cable assembly of claim 1 , wherein the binding element has a resilient memory characteristic configured to cause the binding element to fit snuggly around the conductor core.
3. The cable assembly of claim 1 , wherein the conductor core comprises at least one electrical conductor.
4. The cable assembly of claim 1 , wherein the conductor core comprises at least two electrical conductors twisted in one of the following lays: “right-hand” lay, “left-hand” lay, and S—Z strand.
5. The cable assembly of claim 1 , wherein the binding element is of sufficient hardness so that the binding element is substantially un-deformation when the cable assembly is pushed through the conduit.
6. The cable assembly of claim 1 , wherein the least one sweep is substantially ninety degrees.
7. The cable assembly of claim 1 , wherein the first pushing force is between 5 pounds and 200 pounds and pushes the cable assembly through at least 340 feet of the conduit containing at least two sweeps.
8. The cable assembly of claim 1 , wherein the first pushing force is between 5 pounds and 200 pounds and pushes the cable assembly through at least 340 feet of the conduit containing at least three sweeps.
9. The cable assembly of claim 1 , wherein a lay length of the binding element helically around the conductor is between three and twelve inches.
10. A cable assembly comprising:
a conductor core; and
a binding element placed around the conductor core, the binding element configured to provide a plurality of contact points between the binding element and a conduit when the cable assembly is pushed through the conduit having at least one sweep, the binding element having a lay length configured to cause the binding element to prevent contact between the conductor core and an interior of the sweep wherein the binding element comprises:
a substantially round wire, and
a coating material extruded around the wire configured to cause the binding element to have a substantially round cross-section and configured to cause the substantially round wire to be substantially at the center of the binding element, the coating material including a lubricating material configured to excrete onto an exterior surface of the binding element, wherein the exterior surface of the binding element having the excreted lubricating material is helically around and in contact with the conductor core.
11. The cable assembly of claim 10 , wherein the lay length of the binding element is between three and twelve inches.
12. The cable assembly of claim 10 , wherein the lay length of the binding element is approximately 6.5 inches.
13. The cable assembly of claim 10 , wherein the binding element is of sufficient hardness so that the binding element is substantially un-deformed when the cable assembly is pushed through the conduit.
14. A cable assembly comprising:
a conductor core; and
a binding element configured helically around the conductor core, the binding element configured to allow a force of between 5 pounds and 200 pounds push the cable assembly through at least 340 feet of conduit containing at least two sweeps wherein the binding element comprises;
a wire, and
a coating material extruded around the wire configured to cause the wire to be substantially at the center of the binding element, the coating material including a lubricating material configured to excrete onto an exterior surface of the binding element, wherein the exterior surface of the binding element having the excreted lubricating material is in contact with the conductor core.
15. The cable assembly of claim 10 , wherein the lay length of the binding element is configured to cause at least three points of contacts between the binding element and the interior of the sweep.
16. The cable assembly of claim 10 , wherein the lay length of the binding element is configured to cause at least three points of contacts between the binding element and the interior of the sweep comprising approximately 90 degrees.