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US5132491A Expired / Lapsed US ⏱️ 0.0 years remaining

Shielded jacketed coaxial cable

Assignee: W.L. Gore and Associates Inc
•
Filing: 1991-03-15
•
Granted: 1992-07-21
•
Expires: 2011-03-15
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Abstract

Abstract A jacketed coaxial cable including two or more metal shielding layers, including semiconductive polymer coated tape layers surrounding the drain wires, insulation, and center conductor thereof, the jacket thereof being semiconductive or alternatively non-conductive.

Inventors

  • 👤 Christine Mulrooney
  • 👤 Craig R. Theorin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 05:10
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/18; H01B11/1808; H01B11/1826; H01B11/1834; H01B11/1839; H01B11/1891

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 94 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor each surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) at least two layers of metal-coated polymer type coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film and wrapped around said center conductor, said insulating material, and said drain wires as a unit; and (e) a thermoplastic polymer protective jacket.
Claim 2
Dependent Claim 94 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor each surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) at least two layers of metal-coated polymer type coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film and wrapped around said center conductor, said insulating material, and said drain wires as a unit; and (e) a thermoplastic polymer protective jacket.
Claim 3
Dependent Claim 13 words
A cable of claim 1 wherein said thermoplastic polymer protective jacket is semiconductive.
Claim 4
Dependent Claim 24 words
A cable of claim 1 wherein each said layers of metal-coated polymer tape are applied with a reverse lay from each said adjacent type.
Claim 5
Dependent Claim 16 words
A cable of claim 3 wherein said adhesive layers of two said tapes face each other.
Claim 6
Dependent Claim 12 words
A cable of claim 1 wherein said insulating material comprises porous polytetrafluoroethylene.
Claim 7
Dependent Claim 12 words
A cable of claim 5 wherein said porous polytetrafluoroethylene comprises expanded polytetrafluoroethylene.
Claim 8
Dependent Claim 19 words
A cable of claim 1 wherein said polymer tape comprises thermoplastic polyester and said metal coating thereon comprises aluminum.
Claim 9
Dependent Claim 12 words
A cable of claim 1 wherein said jacket comprises a thermoplastic fluoropolymer.
Claim 10
Dependent Claim 20 words
A cable of claim 1 wherein said semiconductive polymer film and said semiconductive polymer jacket comprise conductive carbon-filled polymer materials.
Claim 11
Dependent Claim 114 words
A cable assembly comprising an multiplicity of coaxial cables surrounded as a unit by a semiconductive thermoplastic polymer protective jacket, each cable therein comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) at least two layers of wrapped metal-coated polymer tape coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film and wrapped around said center conductor, said insulating material, and said drain wires as a unit; and (e) a semiconductive thermoplastic polymer protective jacket.
Claim 12
Dependent Claim 114 words
A cable assembly comprising an multiplicity of coaxial cables surrounded as a unit by a semiconductive thermoplastic polymer protective jacket, each cable therein comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) at least two layers of wrapped metal-coated polymer tape coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film and wrapped around said center conductor, said insulating material, and said drain wires as a unit; and (e) a semiconductive thermoplastic polymer protective jacket.
Claim 13
Dependent Claim 131 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) a layer of wrapped metal-coated polymer tape coated on the side opposite the metal coating wtih a thin adhesive layer of semiconductor polymer film, said metal coating facing and in contact with said drain wires and wrapped around said center conductor, said insulating material, and said drain wires as a unit; (e) a layer of metal-coated thermoplastic polyester tape, said metal-coating facing and in contact with the adhesive coated side of said metal coated and adhesive coated tape layer; and (f) a thermoplastic polymer protective jacket.
Claim 14
Dependent Claim 131 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) a layer of wrapped metal-coated polymer tape coated on the side opposite the metal coating wtih a thin adhesive layer of semiconductor polymer film, said metal coating facing and in contact with said drain wires and wrapped around said center conductor, said insulating material, and said drain wires as a unit; (e) a layer of metal-coated thermoplastic polyester tape, said metal-coating facing and in contact with the adhesive coated side of said metal coated and adhesive coated tape layer; and (f) a thermoplastic polymer protective jacket.
Claim 15
Dependent Claim 12 words
A cable of claim 11 wherein said insulating material comprises expanded polytetrafluoroethylene.
Claim 16
Dependent Claim 14 words
A cable of claim 12 wherein said metal coating of said tape comprises aluminum.
Claim 17
Dependent Claim 112 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) a layer of metal-coated polymer tape coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film, said metal coating facing and in contact with said drain wires and wrapped around said center conductor, said insulating material, and said drain wires as a unit; (e) a layer of served or braided metal strand shielding; and (f) a thermoplastic polymer protective jacket.
Claim 18
Dependent Claim 112 words
A jacketed coaxial cable comprising from inside to outside: (a) at least one conductive metal center conductor surrounded by an (b) electrically insulating material; (c) one or more electrically conductive drain wires positioned parallel to said center conductor along the length of said cable; (d) a layer of metal-coated polymer tape coated on the side opposite the metal coating with a thin adhesive layer of semiconductive polymer film, said metal coating facing and in contact with said drain wires and wrapped around said center conductor, said insulating material, and said drain wires as a unit; (e) a layer of served or braided metal strand shielding; and (f) a thermoplastic polymer protective jacket.
Claim 19
Dependent Claim 11 words
A cable of claim 14 wherein said protective jacket is semiconductive.

References Cited (Backward Citations)

US3484532A Cited
US4477693A Cited
US4510346A Cited
US4588852A Cited
US4691081A Cited
US4701575A Cited
US5037999A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-07-21 1996-01-20 1996-07-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-07-21 2000-01-20 2000-07-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-07-21 2004-01-20 2004-07-21 $7700.00 Window Closed / Lapsed

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