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AssigneeSouthwire Company
InventorsRandy D. Kummer, David Reece, Mark D. Dixon, John R. Carlson, Hai Lam, Philip Sasse
Estimating the term…
Disclosed is a method of manufacturing a finished cable by a process directed to reduce the amount of force required to install the cable. The process involves the extrusion of the cable's outer sheath and the incorporation of a pulling lubricant in connection with, and prior to the completion of, the extrusion to reduce the sheath's surface coefficient of friction as well as reduce the required force to pull the cable for installation. The conductor core is coated with an extruded plastic material with which an appropriate (in amount and type) pulling lubricant is initially combined with the plastic material prior to the formation of the sheath and in which the sheathed conductor core is thereafter cooled, the lubricant either migrating to and/or permeating the sheath to be available at the surface of the sheath at the time of the cable's installation. The preselected lubricant is disclosed as either combined with the plastic material during initial pelletization, or mixed with the plastic pellets prior to introduction of the mixture into the extruding head, or introduced into the extruding head at a separate location downstream from where the plastic material is introduced into the extruding head.
A method of installing an electrical cable through angled building conduits or passageways through internal sections of walls, ceilings, conduits, rafters or joists in a manner that reduces the amount of force required for such installation, said method comprising:
A method of providing a finished electrical cable for installation through angled building conduits or passageways through internal sections of walls, ceilings, conduits, rafters or joists, the cable having lubrication embodied in its outermost jacket sufficient to reduce the amount of force required to pull the cable through said angled building conduits or passageways and without the need for additional lubrication at the exterior surface of said outermost jacket, comprising:
A method of providing a finished electrical cable for installation through angled building conduits or passageways through internal sections of walls, ceilings, conduits rafters or joists, the cable having lubrication embodied in its outermost jacket sufficient to reduce the amount of force required to pull the cable through the angled building conduits or passageways through the internal sections of walls, ceilings, conduits rafters or joists, and without the need for additional lubrication at the exterior surface of said outermost jacket, comprising:
In a method of manufacturing a finished electrical cable having at least one conductor and surrounding insulation and a jacket of plastic material surrounding said conductor and said insulation, with a step of extruding said jacket defining the outermost exterior surface of the finished cable, the improvement comprising:
In a method of manufacturing a finished electrical cable having at least one conductor and surrounding insulation, and a protective jacket of plastic material surrounding said conductor and said insulation, said jacket defining the outermost exterior surface of the finished cable, the improvement comprising:
A method of manufacturing a finished electrical cable having a conductor core and a jacket of a first material, the jacket surrounding at least said conductor core and defining the outermost exterior surface of the finished cable, comprising combining a preselected lubricant with said first material in connection with the formation of the jacket, the lubricant being sufficient so as to reduce the amount of force required to install the cable through angled building passageways, the lubricant further being of the type which migrates through said jacket to be available at said outermost exterior surface of said finished cable during the cable's installation through said angled building passageways.
In a method of manufacturing a finished electrical cable having a conductor core and a jacket formed primarily of a first material, the jacket surrounding at least said conductor core and defining the outermost exterior surface of the finished cable, the improvement comprising combining a preselected lubricant with said first material in connection with, but prior to the completion of, the formation of the jacket, such that the force required to install the cable during its installation through angled building passageways through internal sections of walls, ceilings, conduits, rafters or joists is reduced, in which said lubricant is of the type which permeates said jacket to be continuously available at the said cable outermost exterior surface during its installation through said angled building passageways.
In a method of manufacturing a finished electrical cable of the type having a conductor core, and an outermost jacket defining the exterior surface of the finished cable, the improvement comprising (a) extruding the outermost jacket, and (b) assuring the introduction of a preselected lubricant in connection with the extruding of the jacket of the type and sufficiency that enables the lubricant to either permeate, or migrate through, said jacket to be available at said cable exterior surface at the time of the finished cable's installation through angled building passageways through internal sections of walls, ceilings, conduits rafters or joists, so as to reduce the amount of force required to install the finished cable through said building passageways.
A method of manufacturing a finished electrical cable of the type having a conductor core and surrounding extruded sheath of lubricated plastic material, the sheath defining the exterior surface of the cable, said method comprising;
Dependencies are inferred from the claim text.