Patent US4141802A successfully refreshed from Google Patents.
US4141802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibre-reinforced metal panels and production thereof
Assignee: Societe Nationale des Poudres et Explosifs
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Filing: 1976-12-23
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Granted: 1979-02-27
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Expires: 1996-12-23
Abstract
Abstract In panels for use particularly in the aeronautics industry comprising a metal support foil to which is adhered a fiber-reinforced metal matrix layer, the fibers being of high mechanical strength and modulus, the invention provides the improvement of interposing a thin layer of a bonding metal or alloy between the support foil and the fiber-reinforced metal matrix layer.
Inventors
- 👤 Daniel A. Duparque
- 👤 Andre A. Grange
- 👤 Daniel L. Morin
- 👤 Marius F. Leclercq
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/14; B32B38/00; B32B38/0008; C; C22; C22C; C22C47/00; C22C47/16; B32B2262/00; B32B2262/10; B32B2262/103; B32B2310/00; B32B2310/14; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12444; Y10T428/12486
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
A process for the production of a panel, which comprises the steps of: (i) depositing a thin layer of a bonding metal or alloy on a metal support sheet, the thickness of the bonding layer being between 0.05 and 10 microns, (ii) positioning a layer of spaced apart reinforcing fibres on the bonding metal or alloy layer, and (iii) spraying a metal by means of an arc plasma torch on to and through the reinforcing fibres to form a metal matrix reinforced with the fibres, and to melt the bonding metal, thereby bonding the reinforced metal matrix to the support sheet.
Claim 2
Dependent Claim
101 words
A process for the production of a panel, which comprises the steps of: (i) depositing a thin layer of a bonding metal or alloy on a metal support sheet, the thickness of the bonding layer being between 0.05 and 10 microns, (ii) positioning a layer of spaced apart reinforcing fibres on the bonding metal or alloy layer, and (iii) spraying a metal by means of an arc plasma torch on to and through the reinforcing fibres to form a metal matrix reinforced with the fibres, and to melt the bonding metal, thereby bonding the reinforced metal matrix to the support sheet.
Claim 3
Dependent Claim
21 words
A process according to claim 1, wherein the deposition of said bonding metal or alloy layer is effected by pad electrolysis.
Claim 4
Dependent Claim
24 words
A process according to claim 1, wherein said support sheet is degreased and surface-stripped before effecting the deposition of said bonding metal or alloy.
Claim 5
Dependent Claim
9 words
The panel prepared by the process of claim 1.
Claim 6
Dependent Claim
42 words
A process according to claim 1, wherein the bonding metal or alloy is selected from the group consisting of copper, zinc, gold, silver, tin, indium, iron, brass, gold-indium alloys and alloys based on at least one of lead, tin, antimony and bismuth.
Claim 7
Dependent Claim
22 words
A process according to claim 1, wherein the fibre reinforcement consists of boron fibres coated with an anti-diffusion layer of boron carbide.
Claim 8
Dependent Claim
22 words
A process according to claim 1, wherein both surfaces of the support sheet are provided with a bonding metal or alloy coating.
Claim 9
Dependent Claim
22 words
The process according to claim 1 wherein the bonding metal is copper and the thickness of the bonding layer is 0.05-5 microns.
Claim 10
Dependent Claim
23 words
The process according to claim 1 wherein the support sheet is formed of a light metal or alloy based on aluminum or titanium.
Claim 11
Dependent Claim
31 words
The process according to claim 1 wherein the metal powder being sprayed onto the reinforcing fibers in step (iii) has a melting point above the melting point of the support sheet.
Claim 12
Dependent Claim
21 words
The process according to claim 1 wherein the support sheet is an aluminum alloy of thickness between 25 and 38 microns.
Claim 13
Dependent Claim
23 words
The process according to claim 9 wherein said alloy based on aluminum contains at least one of magnesium, silicon, iron, copper and titanium.
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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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |