US3083452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusion-pressure joining of aluminum members
Assignee: Alcoa Corp
•
Filing: 1961-05-10
•
Granted: 1963-04-02
•
Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 James R Terrill
- 👤 James C Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:51
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302; B23K5/00; B23K5/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF FUSION-PRESSURE JOINING ALUMINUM ELECTRCAL CONDUCTOR MEMBERS COMPRISING PROVIDING A SMOOTH SURFACE ON THE MEMBERS AT THE INTERFACE WHERE THE MEMBERS ARE TO BE JOINED, PROVIDING A RELATIVELY SMALL AMOUNT OF CUPROUS METAL AT THE INTERFACE, ASSEMBLING THE MEMBERS IN JOINT RELATIONSHIP, RAPIDLY HEATING THE JOINT TO A TEMPERATURE AT LEAST HIGH ENOUGH TO PRODUCE ALUMINUM-COPPER EUTECTIC ON THE SURFFACE OF SAID MEMBERS BUT LEAVING A SUBSTANTIAL PORTION OF THE MEMBERS IN THE SOLID STATE, APPLYING SUFFICIENT PRESSURE TO THE JOINT TO EXPEL SUBSTANTIALLY ALL OF THE LIQUID EUTECTIC FROM THE INTERFACE OF THE JOINT AND DEFORM THE MEMBERS AT THE INTERFACE AND THEREAFTER COOLING THE JOINT.
Claim 2
Independent Claim
109 words
THE METHOD OF FUSION-PRESSURE JOINING ALUMINUM ELECTRCAL CONDUCTOR MEMBERS COMPRISING PROVIDING A SMOOTH SURFACE ON THE MEMBERS AT THE INTERFACE WHERE THE MEMBERS ARE TO BE JOINED, PROVIDING A RELATIVELY SMALL AMOUNT OF CUPROUS METAL AT THE INTERFACE, ASSEMBLING THE MEMBERS IN JOINT RELATIONSHIP, RAPIDLY HEATING THE JOINT TO A TEMPERATURE AT LEAST HIGH ENOUGH TO PRODUCE ALUMINUM-COPPER EUTECTIC ON THE SURFFACE OF SAID MEMBERS BUT LEAVING A SUBSTANTIAL PORTION OF THE MEMBERS IN THE SOLID STATE, APPLYING SUFFICIENT PRESSURE TO THE JOINT TO EXPEL SUBSTANTIALLY ALL OF THE LIQUID EUTECTIC FROM THE INTERFACE OF THE JOINT AND DEFORM THE MEMBERS AT THE INTERFACE AND THEREAFTER COOLING THE JOINT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |