US4285120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductor covered with reinforced aluminum matrix and method for manufacture thereof
Assignee: Individual
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Filing: 1979-05-24
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Granted: 1981-08-25
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Expires: 1999-05-24
Abstract
Abstract Disclosed herein is a superconductor covered with a reinforced aluminum matrix, which is obtained by cladding a superconductor with an aluminum matrix reinforced with a very small proportion of alumina dispersed therein and subjecting the clad superconductor to integral forming.
Inventors
- 👤 Harehiko Nomura
- 👤 Kenichi Koyama
- 👤 Kazuhiko Terao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/20; H10N60/01; H10N60/0128; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/887; Y10S505/917; Y10S505/928; Y10S505/93; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
54 words
A method for the manufacture of a superconductor covered with an aluminum matrix of augmented tensile strength, which method comprises steps of inserting a superconductive wire in a pipe of aluminum having alumina dispersed therein and subjecting the resultant assembly of said pipe and said wire to wire-drawing for thereby forming a unitary superconductor.
Claim 2
Independent Claim
54 words
A method for the manufacture of a superconductor covered with an aluminum matrix of augmented tensile strength, which method comprises steps of inserting a superconductive wire in a pipe of aluminum having alumina dispersed therein and subjecting the resultant assembly of said pipe and said wire to wire-drawing for thereby forming a unitary superconductor.
Claim 3
Dependent Claim
48 words
The method according to claim 1, which further comprises inserting the formed unitary superconductor into a hole bored in an aluminum matrix having alumina dispersed therein, subjecting the resultant assembly of said alumina matrix and said unitary superconductor to wire-drawing and flattening the drawn assembly with a roller.
Claim 4
Dependent Claim
21 words
The method according to claim 1, wherein the aluminum matrix is obtained by compressing pure aluminum powder into a unitary mass.
Claim 5
Dependent Claim
29 words
The method according to claim 1, wherein alumina is dispersed in the aluminum matrix in a total amount of from about 0.3 percent to about 1.5 percent by volume.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |