Patent US4127700A successfully refreshed from Google Patents.
US4127700A
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Metallic material with additives embedded therein and method for producing the same
Assignee: G RAU GmbH and Co KG
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Filing: 1974-10-04
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Granted: 1978-11-28
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Expires: 1994-10-04
Abstract
Abstract A metallic material, particularly useful for electrical contacts, comprises a matrix metal, for example silver or copper, with additives embedded therein in powder form. However, while being in powder form the additives are arranged in elongate fiber like lengths preferably parallel fiber like lengths. A method of producing such a distribution is to fill a tube of the matrix metal with the powder and draw it out to wire thickness, bundle a number of such wires together and fuse the outer coverings to form a continuous matrix with embedded fiber like lengths of powder.
Inventors
- 👤 Dieter Stockel
- 👤 Friedrich Schneider
- 👤 Hermann Heiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:29
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H1/021; C; C22; C22C; C22C49/00; H01H11/00; H01H11/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S505/00; Y10S505/80; Y10S505/812; Y10S505/813; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/12063; Y10T428/1209; Y10T428/12097; Y10T428/12146; Y10T428/12486; Y10T428/29; Y10T428/2913; Y10T428/2929
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
38 words
An elongate metallic material comprising a matrix metal with additive material embedded therein, said additive material being in powder form, said powder being distributed about a plurality of fiber-like lengths extending along the length of the material. --.
Claim 2
Dependent Claim
38 words
An elongate metallic material comprising a matrix metal with additive material embedded therein, said additive material being in powder form, said powder being distributed about a plurality of fiber-like lengths extending along the length of the material. --.
Claim 3
Dependent Claim
16 words
Metallic material as claimed in claim 1 wherein the additive material comprises at least one oxide.
Claim 4
Dependent Claim
17 words
Metallic material as claimed in claim 1 wherein the additive material comprises at least one intermetallic compound.
Claim 5
Dependent Claim
17 words
Metallic material as claimed in claim 1 wherein the additive material comprises at least one other metal.
Claim 6
Dependent Claim
13 words
Metallic material as claimed in claim 1 wherein the additive material comprises graphite.
Claim 7
Dependent Claim
18 words
Metallic material as claimed in claim 1 wherein the additive material is distributed in uniformly distributed fiber-like lengths.
Claim 8
Dependent Claim
17 words
Metallic material as claimed in claim 1 wherein the additive material is distributed in parallel fiber-like lengths.
Claim 9
Dependent Claim
21 words
Metallic material as claimed in claim 1 wherein the thickness of the additive fiber-like lengths is of the order of microns.
Claim 10
Dependent Claim
22 words
Metallic material as claimed in claim 1 wherein at least the predominant proportion of the matrix metal consists of high purity silver.
Claim 11
Dependent Claim
20 words
Metallic material as claimed in claim 1 wherein at least the predominant proportion of the matrix metal consists of copper.
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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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |