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US 4,783,579 AGranted
Flat multi-conductor power cable with two insulating layers
AssigneeAMP Incorporated
InventorsHenry E. Brandolf, Paul C. Schubert, Jr., Axel V. Walsen
Life of this patent
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Abstract
A flat multi-conductor power cable is disclosed which includes a plurality of generally parallel, spaced apart, flat conductors which are surrounded by two layers of insulation material. An internal layer is extruded around each of the flat conductors and is intimately bonded to each conductor. A single external layer is extruded around all of the internal layers and is intimately joined to all of the internal layers. Preferably, the external layer comprises a thermoplastic elastomer and the internal layer comprises a polyolefinic ionomer. A method and apparatus for making such a flat multi-conductor power cable is also disclosed.
Claims29
A flat multi-conductor power cable comprising:
- a plurality of continuous, generally parallel, spaced apart metal conductors having flat upper and lower surfaces and generally lie in the same plane;
- an internal layer of a first insulating material extruded around each of said flat conductors, said internal layer being intimately joined to and completely surrounding each of said conductors and extending continuously therealong, said first material being selected to have the property of adhesively joining to the metal of flat conductors;
- and
- an external layer of a second insulating material extruded around said first insulating layer, said external layer being intimately joined to and completely surrounding all of the internal layers and extending continuously therealong, said second insulating material being selected to have the properties of being moisture resistant and of being intimately joined to the first material, said second insulating material being a thermoplastic vulcanizate comprising rubber particles dispersed in a continuous matrix of a thermoplastic resin;
- whereby said cable is especially adapted to be used in undercarpet applications.
2 more elements
A method for making a flat multi-conductor power cable comprising:
- providing a plurality of continuous, generally parallel, spaced apart metal conductors having flat upper and lower surfaces and generally lie in the same plane;
- moving said flat conductors through extruding means;
- extruding an internal layer of a first insulating material directly onto each flat conductor, said internal layers being intimately joined to and made to surround each flat conductors and extending continuously therealong, said first material being selected to have the property of adhesively joining to the metal of said flat conductors;
- and
- extruding a single external layer of a second insulating material around all of the internal layers, the external layer being intimately joined to the internal layers and extending continuously therealong, said second insulating material being selected to have the properties of being moisture resistant and of being intimately joined to the first material, said second insulating material being a thermoplastic vulcanizate comprising rubber particles dispersed in a continuous matrix of a thermoplastic resin.
2 more elements
A flat multi-conductor power cable having live, neutral and ground conductors comprising;
- a plurality of continuous, generally parallel, spaced apart metal conductors having flat upper and lower surfaces and generally lying in the same plane, said conductors defining live, neutral and ground conductors;
- an internal layer of a first insulating material extruded around each of said live, neutral and ground conductors, said internal layer being intimately joined to and completely surrounding each of said conductors and extending continuously therealong, said first material being selected to have the property of adhesively joining to the metal of flat conductors;
- and
- an external layer of a second insulating material extruded around said first insulating layer, said external layer being intimately joined to and completely surrounding all of the internal layers and extending continuously therealong, said second insulating material being selected to have the properties of being moisture resistant and of being intimately joined to the first material, said second insulating material being a thermoplastic vulcanizate comprising rubber particles dispersed in a continuous matrix of a thermoplastic resin;
- whereby said cable is especially adapted to be used in undercarpet applications.
2 more elements
A method for making a flat multi-conductor power cable having live, neutral and ground conductors comprising:
- providing a plurality of continuous, generally parallel, spaced apart metal conductors having flat upper and lower surfaces and generally lying in the same plane, said conductors defining live, neutral and ground conductors;
- moving said flat conductors through extruding means;
- extruding an internal layer of a first insulating material directly onto each live, neutral and ground conductor, said internal layers being intimately joined to and made to surround each flat conductors and extending continuously therealong, said first material being selected to have the property of adhesively joining to the metal of said flat conductors;
- and
- extruding a single external layer of a second insulating material around all of the internal layers, the external layer being intimately joined to the internal layers and extending continuously therealong, said second insulating material being selected to have the properties of being moisture resistant and of being intimately joined to the first material, said second insulating material being a thermoplastic vulcanizate comprising rubber particles dispersed in a continuous matrix of a thermoplastic resin.
2 more elements
Dependencies are inferred from the claim text.