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US3640779A
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High-conductivity copper alloys
Assignee: Olin Corp
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Filing: 1969-09-30
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Granted: 1972-02-08
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Expires: 1989-09-30
Abstract
Abstract New and improved copper base alloys combining high conductivity with good strength, with the composition consisting essentially of from 0.5 to 4.0 percent iron, from 0.2 to 2.5 percent cobalt, a material selected from the group consisting of phosphorus from 0.01 to 0.5 percent, boron from 0.001 to 0.25 percent and mixtures thereof, and the balance essentially copper, said alloy being characterized by the copper matrix having a fine, uniform dispersion of said iron, cobalt, phosphorus and boron precipitated throughout as complex intermetallic compounds.
Inventors
- 👤 Elmars Ence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:22
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/02; H01B1/026; C; C22; C22C; C22C9/00; C22C9/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
An alloy according to claim 1 having a yield strength in excess of 40,000 p.s.i. and conductivity in excess of 75 percent IACS.
Claim 2
Dependent Claim
20 words
An alloy according to claim 1 wherein the iron is present in an amount of from 1.1 to 2.5 percent.
Claim 3
Dependent Claim
19 words
An alloy according to claim 1 wherein the cobalt is present in an amount from 0.3 to 1.5 percent.
Claim 4
Dependent Claim
18 words
An alloy according to claim 1 wherein phosphorus is present in an amount from 0.05 to 0.15 percent.
Claim 5
Dependent Claim
18 words
An alloy according to claim 1 wherein boron is present in an amount from 0.005 to 0.05 percent.
Claim 6
Dependent Claim
13 words
An alloy according to claim 1 containing from 0.2 to 2.0 percent cerium.
Claim 7
Dependent Claim
82 words
A high-conductivity, high-strength copper base alloy consisting essentially of from 1.1 to 2.5% iron, 0.3 to 1.5% cobalt, a material selected from the group consisting of phosphorus from 0.05 to 0.15%, boron from 0.005 to 0.05% and mixtures thereof, and the balance copper, said alloy characterized by the copper matrix having a fine, uniform dispersion of Said iron, cobalt, phosphorus and boron precipitated throughout as complex intermetallic compounds. 9. An alloy according to claim 8 containing from 0.3 to 1.0 percent cerium.
Claim 8
Dependent Claim
17 words
An alloy according to claim 1 wherein said complex intermetallic compounds are complex ternary or quaternary phosphides.
References Cited (Backward Citations)
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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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |