§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US5218171A Expired / Lapsed US ⏱️ 0.0 years remaining

Wire and cable having conductive fiber core

Assignee: Champlain Cable Corp
•
Filing: 1991-11-25
•
Granted: 1993-06-08
•
Expires: 2011-11-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention is a method of fabricating a wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly that of low weight. The article generally comprises an inner conductive central core of one or more metal-coated fibers. The conductive core is preferably comprised of silver-coated aramid fibers having a silver coating of greater than 30 wt. % of the fiber, and generally several hundred weight percent thereof. The silver is coated upon aramid fibers to provide a cable having approximately half the weight and approximately 15 times the tensile strength of cables having equivalent resistance and/or equivalently sized cores of silver plated copper. The metal coating of the inventive process is accomplished in two steps: (a) a high tensile strength fiber comprising nylon, aramid, etc., is first plated with a first layer of metal such as copper, silver, etc.; and then (b) electrochemically plated with a second layer of metal. Cables fabricated in accordance with the invention can have conductive central core elements comprising one or more metal coated fibers that are either straight, twisted and/or comprised of straight or twisted bundles.

Inventors

  • 👤 Mahmoud Aldissi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 17:57
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H01B1/24; H01B7/00; H01B7/0009; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12625; Y10T428/12771; Y10T428/12861; Y10T428/12896

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 86 words
A conductive core element for a wire or cable article, comprising a flexible, high tensile strength fiber having a first layer of metal up to a weight percent of the fiber of approximately 30, overlaid with a second layer of a metal, said first and second layers of metal having a total weight percent of said flexible fiber greatly in excess of said 30 weight percent, and wherein said resulting conductive core has an approximate conductivity equivalent to a metal wire conductive core of equivalent size.
Claim 2
Dependent Claim 86 words
A conductive core element for a wire or cable article, comprising a flexible, high tensile strength fiber having a first layer of metal up to a weight percent of the fiber of approximately 30, overlaid with a second layer of a metal, said first and second layers of metal having a total weight percent of said flexible fiber greatly in excess of said 30 weight percent, and wherein said resulting conductive core has an approximate conductivity equivalent to a metal wire conductive core of equivalent size.
Claim 3
Dependent Claim 31 words
The conductive core element in accordance with claim 1, wherein said flexible, high tensile strength fiber is selected from a group of flexible fibers consisting of: nylon, aramid, and carbon fibers.
Claim 4
Dependent Claim 28 words
The conductive core element in accordance with claim 1, wherein said second layer of metal comprises a metal different from said metal of said first layer of metal.
Claim 5
Dependent Claim 28 words
The conductive core element in accordance with claim 2, wherein said second layer of metal comprises a metal different from said metal of said first layer of metal.
Claim 6
Dependent Claim 23 words
The conductive core element in accordance with claim 1, wherein at least one of said first and second layers of metal comprises silver.
Claim 7
Dependent Claim 23 words
The conductive core element in accordance with claim 2, wherein at least one of said first and second layers of metal comprises silver.
Claim 8
Dependent Claim 36 words
The conductive core element in accordance with claim 1, wherein said first and second layers of metal are each selected from a group of metals consisting of: copper, tin, silver, nickel, zinc, gold, and alloys thereof.
Claim 9
Dependent Claim 36 words
The conductive core element in accordance with claim 2, wherein said first and second layers of metal are each selected from a group of metals consisting of: copper, tin, silver, nickel, zinc, gold, and alloys thereof.
Claim 10
Dependent Claim 21 words
The conductive core element in accordance with claim 1, wherein said conductive core element is part of a multi-element core member.
Claim 11
Dependent Claim 29 words
The conductive core element in accordance with claim 1, wherein said conductive core element is part of a multi-element core having fibers that are twisted within said multi-element core.
Claim 12
Dependent Claim 29 words
The conductive core element in accordance with claim 1, wherein said conductive core element is part of a multi-element core having fibers that are bundled within said multi-element core.
Claim 13
Dependent Claim 29 words
The conductive core element in accordance with claim 1, wherein said conductive core element is part of a multi-element core having fibers that are straight within said multi-element core.
Claim 14
Dependent Claim 13 words
A wire or cable article comprising the conductive core element of claim 1.

References Cited (Backward Citations)

US2131478A Cited
US2616165A Cited
US2848390A Cited
US2938821A Cited
US4762603A Cited
US4518632A Cited
US4634805A Cited
US5103067A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-06-07 1996-12-07 1997-06-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-06-07 2000-12-07 2001-06-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-06-07 2004-12-07 2005-06-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag