US2674791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of soldering aluminous metal parts by treating with bromide and iodide fluxes
Assignee: RTX Corp
•
Filing: 1950-04-15
•
Granted: 1954-04-13
•
Expires: 1970-04-15
Abstract
No abstract record available.
Inventors
- 👤 Alden P Edson
- 👤 Isaac L Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:33
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/38; B23K35/383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
THE PROCESS OF JOINING METAL PARTS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM-CONTAINING ALLOYS BY SOLDER WHICH INCLUDES FLUXING THE METAL PARTS AND SOLDER AT SOLDERING TEMPERATURE BY MEANS OF A STABLE GASEOUS ATMOSPHERE SUBSTANTIALLY INERT WITH RESPECT TO THE METALS BEING TREATED BUT REACTIVE WITH THEIR OXIDES, THE ACTIVE COMPONENT OF WHICH ATMOSHERE IS PROVIDED BY A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE VOLATILE INORGANIC BROMIDES AND IODIDES HAVING TWO OR MORE ATOMS SELECTED FROM THE GROUP CONSISTING OF BROMINE AND IODINE ATOMS CONNECTED TO A SINGLE ATOM AND HAVING A MOLECULAR WEIGHT AT LEAST 250 REACTIVE WITH THE OXIDE OF THE METALS, SAID COMPOUND BEING VOLATILE AT SOLDERING TEMPERATURES AND SUBJECTING THE METAL PARTS TO SAID STABLE GASEOUS ATMOSPHERE AT SOLDERING TEMPERATURE UNTIL THE METAL PARTS HAVE BEEN BONDED BY SAID SOLDER.
Claim 2
Dependent Claim
138 words
THE PROCESS OF JOINING METAL PARTS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM-CONTAINING ALLOYS BY SOLDER WHICH INCLUDES FLUXING THE METAL PARTS AND SOLDER AT SOLDERING TEMPERATURE BY MEANS OF A STABLE GASEOUS ATMOSPHERE SUBSTANTIALLY INERT WITH RESPECT TO THE METALS BEING TREATED BUT REACTIVE WITH THEIR OXIDES, THE ACTIVE COMPONENT OF WHICH ATMOSHERE IS PROVIDED BY A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE VOLATILE INORGANIC BROMIDES AND IODIDES HAVING TWO OR MORE ATOMS SELECTED FROM THE GROUP CONSISTING OF BROMINE AND IODINE ATOMS CONNECTED TO A SINGLE ATOM AND HAVING A MOLECULAR WEIGHT AT LEAST 250 REACTIVE WITH THE OXIDE OF THE METALS, SAID COMPOUND BEING VOLATILE AT SOLDERING TEMPERATURES AND SUBJECTING THE METAL PARTS TO SAID STABLE GASEOUS ATMOSPHERE AT SOLDERING TEMPERATURE UNTIL THE METAL PARTS HAVE BEEN BONDED BY SAID SOLDER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |