Patent US3984619A successfully refreshed from Google Patents.
US3984619A
Expired / Lapsed
US
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Aluminium alloy conductor wire
Assignee: Balfour Beatty PLC
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Filing: 1975-01-27
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Granted: 1976-10-05
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Expires: 1995-01-27
Abstract
Abstract An aluminium alloy conductor wire consists of between 97.25 and 99.4 (preferably 98.05 to 99.2) weight percent aluminium; between 0.3 and 1.0 (preferably 0.45 to 0.6) weight percent iron; between 0.22 and 0.7 (preferably 0.225 to 0.3) weight percent silicon, the ratio of Fe:Si being at least 4:3 and preferably at least 2:1; between 0.08 and 1.0 (preferably 0.2 to 0.5) weight percent copper; and trace quantities of conventional impurities. The conductor wire is especially suitable for use as a conductor of a telecommunication cable or as a component element of an overhead electric conductor.
Inventors
- 👤 Peter Michael Raw
- 👤 Rees Jenkin Llewellyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
C; C22; C22C; C22C21/00; H; H01; H01B; H01B1/00; H01B1/02; H01B1/023; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
52 words
A conductor wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 2
Dependent Claim
52 words
A conductor wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 3
Dependent Claim
52 words
A conductor wire composed of an aluminium alloy consisting of between 98.05 and 99.2 weight percent aluminium; between 0.45 and 0.6 weight percent iron; between 0.225 and 0.3 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 4
Dependent Claim
52 words
A conductor wire composed of an aluminium alloy consisting of between 98.05 and 99.2 weight percent aluminium; between 0.45 and 0.6 weight percent iron; between 0.225 and 0.3 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 5
Dependent Claim
16 words
A concuctor wire as claimed in claim 1, wherein the Fe:Si ratio is at least 2:1.
Claim 6
Dependent Claim
21 words
A conductor wire as claimed in claim 1, wherein the copper content lies in the range 0.2 to 0.5 weight percent.
Claim 7
Dependent Claim
18 words
A conductor wire as claimed in claim 1, which has at least one covering layer of insulating material.
Claim 8
Dependent Claim
96 words
A conductor wire consisting of an inner part (constituting the major proportion of the cross-sectional area of the conductor wire) composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurites and, bonded to the inner part, an outer part (constituting the minor proportion of the cross-sectional area of the conductor wire) of copper or a copper-based alloy.
Claim 9
Dependent Claim
96 words
A conductor wire consisting of an inner part (constituting the major proportion of the cross-sectional area of the conductor wire) composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurites and, bonded to the inner part, an outer part (constituting the minor proportion of the cross-sectional area of the conductor wire) of copper or a copper-based alloy.
Claim 10
Dependent Claim
18 words
A conductor wire as claimed in claim 6, which has at least one covering layer of insulating material.
Claim 11
Dependent Claim
75 words
An insulated electric conductor comprising a plurality of conductor wires each composed of an aluminum alloy consisting of between 97.25 and 99.4 weight percent aluminum, between 0.3 and 1.0 weight percent iron, between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3, between 0.08 and 1.0 weight percent copper, and trace quantities of conventional impurities and, surrounding the assembly of conductor wires, at least one covering layer of insulating material.
Claim 12
Dependent Claim
75 words
An insulated electric conductor comprising a plurality of conductor wires each composed of an aluminum alloy consisting of between 97.25 and 99.4 weight percent aluminum, between 0.3 and 1.0 weight percent iron, between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3, between 0.08 and 1.0 weight percent copper, and trace quantities of conventional impurities and, surrounding the assembly of conductor wires, at least one covering layer of insulating material.
Claim 13
Dependent Claim
104 words
An electric cable comprising at least one insulated conductor, the insulated conductor or at least one of the insulated conductors comprising at least one conductor wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities and, surrounding the conductor wire or the conductor wires, at least one covering layer of insulating material and, enclosing the insulated conductor or insulated conductors, an outer protective sheath.
Claim 14
Dependent Claim
104 words
An electric cable comprising at least one insulated conductor, the insulated conductor or at least one of the insulated conductors comprising at least one conductor wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities and, surrounding the conductor wire or the conductor wires, at least one covering layer of insulating material and, enclosing the insulated conductor or insulated conductors, an outer protective sheath.
Claim 15
Dependent Claim
104 words
An electric cable comprising at least one insulated conductor, the insulated conductor or at least one of the insulated conductors comprising at least one conductor wire composed of an aluminium alloy consisting of between 98.05 and 99.2 weight percent aluminium; between 0.45 and 0.6 weight percent iron; between 0.225 and 0.3 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.8 and 1.0 weight percent copper; and trace quantities of conventional impurities and, surrounding the conductor wire or the conductor wires, at least one covering layer of insulating material and, enclosing the insulated conductor or insulated conductors, an outer protective sheath.
Claim 16
Dependent Claim
104 words
An electric cable comprising at least one insulated conductor, the insulated conductor or at least one of the insulated conductors comprising at least one conductor wire composed of an aluminium alloy consisting of between 98.05 and 99.2 weight percent aluminium; between 0.45 and 0.6 weight percent iron; between 0.225 and 0.3 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.8 and 1.0 weight percent copper; and trace quantities of conventional impurities and, surrounding the conductor wire or the conductor wires, at least one covering layer of insulating material and, enclosing the insulated conductor or insulated conductors, an outer protective sheath.
Claim 17
Dependent Claim
71 words
A telecommunication cable comprising a multiplicity of insulated conductors, each conductor comprising a wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities, and a waterproof sheath enclosing the insulated conductors.
Claim 18
Dependent Claim
71 words
A telecommunication cable comprising a multiplicity of insulated conductors, each conductor comprising a wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities, and a waterproof sheath enclosing the insulated conductors.
Claim 19
Dependent Claim
100 words
A telecommunication cable comprising a multiplicity of insulated conductors, each conductor comprising a wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities, a waterproof sheath enclosing the insulated conductors and, filling the interstices between these insulated conductors and between them and the cable sheath from end to end of the cable length, a water-impermeable medium of a grease-like nature.
Claim 20
Dependent Claim
100 words
A telecommunication cable comprising a multiplicity of insulated conductors, each conductor comprising a wire composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities, a waterproof sheath enclosing the insulated conductors and, filling the interstices between these insulated conductors and between them and the cable sheath from end to end of the cable length, a water-impermeable medium of a grease-like nature.
Claim 21
Dependent Claim
21 words
A telecommunication cable as claimed in claim 12, wherein the insulation of each conductor is a plastics material of cellular form.
Claim 22
Dependent Claim
69 words
An overhead electric conductor comprising at least one stranded layer of wires, wherein at least some of the wires are composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 23
Dependent Claim
69 words
An overhead electric conductor comprising at least one stranded layer of wires, wherein at least some of the wires are composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 24
Dependent Claim
78 words
An overhead electric conductor comprising a core of at least one metallic element of high tensile strength and, surrounding the core, at least one stranded layer of wires each composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
Claim 25
Dependent Claim
78 words
An overhead electric conductor comprising a core of at least one metallic element of high tensile strength and, surrounding the core, at least one stranded layer of wires each composed of an aluminium alloy consisting of between 97.25 and 99.4 weight percent aluminium; between 0.3 and 1.0 weight percent iron; between 0.22 and 0.7 weight percent silicon, the ratio of Fe:Si being at least 4:3; between 0.08 and 1.0 weight percent copper; and trace quantities of conventional impurities.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |