US3683485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating a steel-filament reinforced metal composite
Assignee: ROYCE G SCHIERDING
•
Filing: 1970-01-02
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Granted: 1972-08-15
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Expires: 1990-01-02
Abstract
Abstract Moldable pellets consisting essentially of a metal matrix having steel filaments positioned therein substantially in parallel and separated from each other by said metal; the method of producing the pellets, and the process of manufacturing shaped composite structures wherein said pellets are molded to the desired shape, e.g., by extrusion or transfer molding.
Inventors
- 👤 Royce G Schierding
- 👤 Tommy L Tolbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:39
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/002; Y; Y10; Y10S; Y10S29/00; Y10S29/047; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801; Y10T428/00; Y10T428/12; Y10T428/12465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
The method defined in claim 1 wherein said moldable pellets are transfer molded by charging the pellets to a receptacle; heating the pellets to a temperature below the melting point of the matrix metal but sufficiently high to permit flow of the pellets; and applying pressure to force the pellets to flow through a runner and gate into a mold while maintaining the pellets at said temperature.
Claim 2
Dependent Claim
24 words
A method according to claim 1 wherein said steel filaments comprise from about 15 to about 60 percent by volume of said moldable pellets.
References Cited (Backward Citations)
US2953849A
Cited
US3455662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |