Patent US3314825A successfully refreshed from Google Patents.
US3314825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite metal structural components
Assignee: National Research Development Corp UK
•
Filing: 1963-05-20
•
Granted: 1967-04-18
•
Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Forsyth Peter Joseph
- 👤 George Ronald Walter
- 👤 Ryder Dennis Arthur
- 👤 Vian Robin Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:31
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/064; C22C47/068; C22C47/20; E; E04; E04C; E04C2/00; E04C2/02; E04C2/08; B; B22; B22F; B22F2998/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T428/00; Y10T428/12; Y10T428/12444; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/1275; Y10T428/12757; Y10T428/12764
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD OF PRODUCING A COMPOSITE MATERIAL OF A HIGH STRENGTH ALUMINIUM ALLOY AND A REINFORCEMENT OF ANOTHER METAL COMPRISING ASSEMBLING IN A STACK EXTERNAL RELATIVELY THICKER SHEET MATRIX LAYERS OF ALUMINIUM ALLOY AND SANDWICHED BETWEEN THE EXTERNAL LAYERS AT LEAST ONE REINFORCING LAYER INCLUDING AT LEAST A PROPORTION OF RELATIVELY HIGHER STRENGTH SUBSTANTIALLY PARALLEL FINE WIRES SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, TUNGSTEN AND COBALT ALLOY WIRES, WHICH PROPORTION CONSTITUTES FROM 1 TO 20% BY VOLUME OF THE COMPOSITE MATERIAL, HOT ROLLING THE ASSEMBLED STACK AT A TEMPERATURE IN THE RANGE 400 TO 450*C. WITH THE HIGHER STRENGTH WIRES PARALLEL WITH THE ROLL AXES TO CONVERT THE STACK INOT COMPOSITE SUBSTANTIALLY HOMOGENEOUS SHEET MATERIAL CONTAINING THE EMBEDDED HIGH STRENGTH WIRES AND SOLUTION HEAT TREATING AND AGE HARDENING THE COMPOSITE SHEET AT TEMPERATURES APPROPRIATE TO THE TREATMENT OF THE MATRIX MATERIAL.
Claim 2
Independent Claim
143 words
A METHOD OF PRODUCING A COMPOSITE MATERIAL OF A HIGH STRENGTH ALUMINIUM ALLOY AND A REINFORCEMENT OF ANOTHER METAL COMPRISING ASSEMBLING IN A STACK EXTERNAL RELATIVELY THICKER SHEET MATRIX LAYERS OF ALUMINIUM ALLOY AND SANDWICHED BETWEEN THE EXTERNAL LAYERS AT LEAST ONE REINFORCING LAYER INCLUDING AT LEAST A PROPORTION OF RELATIVELY HIGHER STRENGTH SUBSTANTIALLY PARALLEL FINE WIRES SELECTED FROM THE GROUP CONSISTING OF STAINLESS STEEL, TUNGSTEN AND COBALT ALLOY WIRES, WHICH PROPORTION CONSTITUTES FROM 1 TO 20% BY VOLUME OF THE COMPOSITE MATERIAL, HOT ROLLING THE ASSEMBLED STACK AT A TEMPERATURE IN THE RANGE 400 TO 450*C. WITH THE HIGHER STRENGTH WIRES PARALLEL WITH THE ROLL AXES TO CONVERT THE STACK INOT COMPOSITE SUBSTANTIALLY HOMOGENEOUS SHEET MATERIAL CONTAINING THE EMBEDDED HIGH STRENGTH WIRES AND SOLUTION HEAT TREATING AND AGE HARDENING THE COMPOSITE SHEET AT TEMPERATURES APPROPRIATE TO THE TREATMENT OF THE MATRIX MATERIAL.
References Cited (Backward Citations)
US664438A
Cited
US1243041A
Cited
US1243654A
Cited
US3032448A
Cited
US3093459A
Cited
US3078563A
Cited
US3173202A
Cited
US3144370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |