US4907855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine cable for a fiber optic waveguide with regenerator supply
Assignee: Siemens AG
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Filing: 1989-01-09
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Granted: 1990-03-13
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Expires: 2009-01-09
Abstract
Abstract A marine cable for a fiber optic waveguide with regenerator supply. A marine cable for a fiber optic waveguide must be provided with an electrical conductor for energy supply, in order to supply energy to the regenerators. For this purpose, the optical transmission elements are surrounded by a stranded layer of metal wires with good conductivity, which serve to supply energy. The stranded layer of metal wires with good conductivity is surrounded by an insulation layer, which in turn is protected by a stranded layer of sheathing wires. Both of the stranded layers of wires are embedded in a layer of a plastic, water-repellent material. The outer casing of the cable is formed by a metal composite layer sheath. The marine cable for a fiber optic waveguide with regenerator supply line, as described, can, for example, be laid down as an intercontinental cable.
Inventors
- 👤 Ulrich Oestreich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:30
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4479; G02B6/4486; G02B6/4488; G02B6/4401; G02B6/4415; G02B6/4416; G02B6/4427; G02B6/449
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A marine cable for a fiber optic waveguide with a regenerator supply line, the marine cable having a central LWL-bundle-conductor wire that is surrounded by at least one stranded layer of high-tensile sheathing wires and by a watertight metal casing, wherein the marine cable further comprises, within the stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of eonduction embedded in a plastic, water-repellent embedding material, an insulation layer being disposed between the inner stranded layer and the sheathing wires, the embedding material having a specific electrical resistance smaller by at least one order of magnitude than that of the insulation layer.
Claim 2
Dependent Claim
111 words
A marine cable for a fiber optic waveguide with a regenerator supply line, the marine cable having a central LWL-bundle-conductor wire that is surrounded by at least one stranded layer of high-tensile sheathing wires and by a watertight metal casing, wherein the marine cable further comprises, within the stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of eonduction embedded in a plastic, water-repellent embedding material, an insulation layer being disposed between the inner stranded layer and the sheathing wires, the embedding material having a specific electrical resistance smaller by at least one order of magnitude than that of the insulation layer.
Claim 3
Dependent Claim
34 words
The marine cable recited in claim 1, wherein at least one of the inner stranded layer of conductive metal wires and the stranded layer of sheathing wires is embedded in a layer of polyisobutylene.
Claim 4
Dependent Claim
33 words
The marine cable recited in claim 1, wherein the embedding material comprises to layers of different plastic water-repellent materials and the inner stranded layer of conductive wires is embedded between said two layers.
Claim 5
Dependent Claim
31 words
The marine cable recited in claim 1, wherein the central bundle-conductor wire is surrounded by a filling material, and by a bundle tubing which comprises a high-strength, non-crystallizing injection molding material.
Claim 6
Dependent Claim
28 words
The marine cable recited in claim 1, wherein the insulation layer disposed between the inner stranded layer and the sheathing layer is surrounded by a layer of polyamide.
Claim 7
Dependent Claim
20 words
The marine cable recited in claim 1 wherein the marine cable comprises a metal composite-layer sheath as an outer casing.
Claim 8
Dependent Claim
37 words
The marine cable recited in claim 3, wherein said two layers comprise an inner layer and an outer layer, the inner layer comprising polyisobutylene and the outer layer comprising an adhesive which fuses with said insulation layer.
Claim 9
Dependent Claim
22 words
The marine cable recited in claim 4, wherein said injection molding material comprises one of a polyamide, a polyetherimide or a polycarbonate.
Claim 10
Independent Claim
169 words
A method for the manufacture of a marine cable for a fiber optic waveguide with a regenerator supply line, the marine cable having a central LWL-bundle-conductor wire surrounded by at least one stranded layer of high-tensile sheathing wires and by a watertight metal casing, wherein the marine cable further comprises, within the stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of conductive metal wires embedded in a plastic, water-repellent embedding material, an insulation layer being disposed between the inner stranded layer and the sheathing wires, the embedding material having a specific electrical resistance smaller by at least one order of magnitude than that of the insulation layer, the method comprising the steps of: surrounding the central LWL-bundle-conductor wire with a bundle tubing; applying the SZ-stranded layer of conductive metal wires to the bundle tubing, and further embedding said SZ-stranded layer in said plastic, water-repellent embedding material; extruding the insulation layer on said plastic, water repellent embedding applying a protective layer of PA 12 to the insulation layer.
Claim 11
Independent Claim
169 words
A method for the manufacture of a marine cable for a fiber optic waveguide with a regenerator supply line, the marine cable having a central LWL-bundle-conductor wire surrounded by at least one stranded layer of high-tensile sheathing wires and by a watertight metal casing, wherein the marine cable further comprises, within the stranded layer of high-tensile sheathing wires, an inner SZ-stranded layer of conductive metal wires embedded in a plastic, water-repellent embedding material, an insulation layer being disposed between the inner stranded layer and the sheathing wires, the embedding material having a specific electrical resistance smaller by at least one order of magnitude than that of the insulation layer, the method comprising the steps of: surrounding the central LWL-bundle-conductor wire with a bundle tubing; applying the SZ-stranded layer of conductive metal wires to the bundle tubing, and further embedding said SZ-stranded layer in said plastic, water-repellent embedding material; extruding the insulation layer on said plastic, water repellent embedding applying a protective layer of PA 12 to the insulation layer.
References Cited (Backward Citations)
GB2005861A
Cited
US4156104A
Cited
US4388485A
Cited
FR2547066A1
Cited
GB2189071A
Cited
FR2584200A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |