US2987816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding aluminum metals
Assignee: Individual
•
Filing: 1956-12-10
•
Granted: 1961-06-13
•
Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Robert A Noland
- 👤 David E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:33
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/10; B; B23; B23K; B23K20/00; B23K20/16; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B23K35/30; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS OF BONDING TWO UNITS OF ALUMINUM BASE METAL, CONSISTING IN APPLYING SILICON POWDER TO THE SURFACE TO BE BONDED OF AT LEAST ONE OF SAID UNITS, PLACING THE OTHER UNIT ON SAID SURFACE WHEREBY AN ASSEMBLY IS FORMED, RUBBING THE TWO UNITS AGAINST EACH OTHER WHILE AT ROOM TEMPERATURE AND THE SILICON IS SOLID, WHEREBY ANY OXIDE FILM ON THE SURFACE IS RUPTURED, AND APPLYING PRESSURE AND HEAT TO SAID ASSEMBLY WHEREBY AN ALUMINUMSILICON ALLOY FORMS, IS SQUEEZED OUT FROM BETWEEN THE TWO UNITS, THE OXIDE FILM IS DRAGGED ALONG BY THE ALUMINUMSILICON ALLOY AND THE TWO UNITS ARE INTEGRALLY JOINED.
Claim 2
Dependent Claim
103 words
A PROCESS OF BONDING TWO UNITS OF ALUMINUM BASE METAL, CONSISTING IN APPLYING SILICON POWDER TO THE SURFACE TO BE BONDED OF AT LEAST ONE OF SAID UNITS, PLACING THE OTHER UNIT ON SAID SURFACE WHEREBY AN ASSEMBLY IS FORMED, RUBBING THE TWO UNITS AGAINST EACH OTHER WHILE AT ROOM TEMPERATURE AND THE SILICON IS SOLID, WHEREBY ANY OXIDE FILM ON THE SURFACE IS RUPTURED, AND APPLYING PRESSURE AND HEAT TO SAID ASSEMBLY WHEREBY AN ALUMINUMSILICON ALLOY FORMS, IS SQUEEZED OUT FROM BETWEEN THE TWO UNITS, THE OXIDE FILM IS DRAGGED ALONG BY THE ALUMINUMSILICON ALLOY AND THE TWO UNITS ARE INTEGRALLY JOINED.
References Cited (Backward Citations)
US2733168A
Cited
US549610A
Cited
US733662A
Cited
US781338A
Cited
US1050880A
Cited
US1853370A
Cited
US2100257A
Cited
US2155651A
Cited
US2317510A
Cited
US2258681A
Cited
US2301332A
Cited
US2473888A
Cited
US2602413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |