EP0328409A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Optical fibre cables
Assignee: Nortel Networks Ltd
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Filing: 1989-02-10
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Granted: —
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Expires: 2009-02-10
Abstract
Abstract An optical fibre cable suitable for use as a drop wire from a street cabinet to a subscriber's premises comprises a compact steel strength member (1), at least one optical fibre (7) and optionally an insulated electrical conductor (8) held in side-by-side relationship by a single plastics extrusion (9).
Inventors
- 👤 Ian Houghton
- 👤 Thomas Oliver Samuel Hayes
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:37
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4415; G02B6/4416; G02B6/4422; G02B6/4403; G02B6/4407
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
An optical fibre cable comprising a tensile strength member held in side-by-side relationship an optical fibre solely by means of an extruded encapsulation in which said optical fibres are held loosely in a tubular compartment within said encapsulation.
Claim 2
Dependent Claim
38 words
An optical fibre cable comprising a tensile strength member held in side-by-side relationship an optical fibre solely by means of an extruded encapsulation in which said optical fibres are held loosely in a tubular compartment within said encapsulation.
Claim 3
Dependent Claim
51 words
An optical fibre cable comprising a tensile strength member formed by a pair of tensile elements in side-by-side relationship, an open channel lying to one side of said elements, and a sheath around the strength member and over the channel, there being at least one optical fibre located in said channel.
Claim 4
Dependent Claim
51 words
An optical fibre cable comprising a tensile strength member formed by a pair of tensile elements in side-by-side relationship, an open channel lying to one side of said elements, and a sheath around the strength member and over the channel, there being at least one optical fibre located in said channel.
Claim 5
Dependent Claim
35 words
An optical fibre cable comprising a stranded strength member, at least one of the strands being formed by an optical fibre, said strength member and said optical fibre being encapsulated in a close-fitting outer sheath.
Claim 6
Dependent Claim
35 words
An optical fibre cable comprising a stranded strength member, at least one of the strands being formed by an optical fibre, said strength member and said optical fibre being encapsulated in a close-fitting outer sheath.
Claim 7
Dependent Claim
32 words
A cable as claimed in any preceding claim comprising an optical fibre tightly clad in a material which provides longitudinal compression of the fibre, whereby to provide strain relief in the cable.
Claim 8
Dependent Claim
47 words
A cable as claimed in claim 1 wherein said encapsulation has a figure of eight cross section, said strength member being held firmly in contact with the encapsulation in one of the figure-of-eight parts and said tubular compartment being located in the other of the figure-of-eight parts.
Claim 9
Dependent Claim
27 words
A cable as claimed in claim 1 or claim 5, wherein said fibre is located within said tubular compartment along with at least one insulated electrical conductor.
Claim 10
Dependent Claim
21 words
A cable as claimed in any preceding claim wherein the compartment or channel is water blocked with a water blocking material.
Claim 11
Dependent Claim
36 words
A cable as claimed in any preceding claim wherein the encapsulation is a single shot extrusion which is the sole means by which the loose-tubed fibre and the strength member are held in their side-by-side relationship.
References Cited (Backward Citations)
No citation records indexed.
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