US3213188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite electrical conductor for an electrolysis cell used in manufacture of aluminum and method for making same
Assignee: Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
•
Filing: 1961-07-19
•
Granted: 1965-10-19
•
Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Armand Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:29
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/16; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/941; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/887; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12396; Y10T428/12493; Y10T428/12771; Y10T428/12778; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
AN ELECTRICAL CONDUCTOR FOR CONDUCTING CURRENT FROM AN EXTERNAL CURRENT LEAD TO LIQUID ALUMINUM IN AN ELECTROLYSIS CELL FOR THE MANUFACTURE OF ALUMINUM, SAID CONDUCTOR COMPRISING A ROD OF SINTERED REFRACTORY ELECTRICALLY CONDUCTING MATERIAL HAVING UNITED TO A PORTION THEREOF A HEAD OF JOINING METAL WHICH HAS A MELTING POINT HIGHER THAN ABOUT 950*C. AND IS CAPABLE OF ALLOYING WITH ALUMINUM, SAID SINTERED MATERIAL AND SAID HEAD OF JOINING METAL BEING UNITED TOGETHER THROUGH A MECHANICAL AND ELECTRICAL CONNECTION BY AT LEAST ONE OF AN ALLOYING OF SAID JOINED METAL WITH ALUMINUM AND A DIFFUSING OF ALUMINUM INTO SAID JOINING METAL, SAID ROD HAVING PRIOR TO EFFECTING SAID UNITING TOGETHER A COATING OF ALUMINUM ON THAT PART TO WHICH SAID JOINING METAL IS UNITED TO SAID ROD.
Claim 2
Dependent Claim
127 words
AN ELECTRICAL CONDUCTOR FOR CONDUCTING CURRENT FROM AN EXTERNAL CURRENT LEAD TO LIQUID ALUMINUM IN AN ELECTROLYSIS CELL FOR THE MANUFACTURE OF ALUMINUM, SAID CONDUCTOR COMPRISING A ROD OF SINTERED REFRACTORY ELECTRICALLY CONDUCTING MATERIAL HAVING UNITED TO A PORTION THEREOF A HEAD OF JOINING METAL WHICH HAS A MELTING POINT HIGHER THAN ABOUT 950*C. AND IS CAPABLE OF ALLOYING WITH ALUMINUM, SAID SINTERED MATERIAL AND SAID HEAD OF JOINING METAL BEING UNITED TOGETHER THROUGH A MECHANICAL AND ELECTRICAL CONNECTION BY AT LEAST ONE OF AN ALLOYING OF SAID JOINED METAL WITH ALUMINUM AND A DIFFUSING OF ALUMINUM INTO SAID JOINING METAL, SAID ROD HAVING PRIOR TO EFFECTING SAID UNITING TOGETHER A COATING OF ALUMINUM ON THAT PART TO WHICH SAID JOINING METAL IS UNITED TO SAID ROD.
Claim 3
Independent Claim
101 words
A METHOD OF MAKING AN ELECTRICAL CONDUCTOR OF A REFRACTORY ELECTRICALLY CONDUCTING MATERIAL AND A JOINING METAL SELECTED FROM THE GROUP, CONSISTING OF COPPER, SILVER, IRON, NICKEL AND THEIR ALLOYS, SAID CONDUCTOR CONDUCTING CURRENT TO LIQUID ALUMINUM CATHODE OF A CELL FOR PRODUCTION OF ALUMINUM ELECTROLYTICALLY, SAID METHOD COMPRISING ELECTRODEPOSITING FROM A MOLTEN BATH OF CRYOLITE CONTAINING ALUMINA, A THIN LAYER OF LIQUID ALUMINUM ON AN END OF SAID REFRACTORY MATERIAL, POURING LIQUID JOINING METAL INTO THE MOLTEN BATH, ALLOWING ALUMINUM TO AT LEAST ONE OF DIFFUSE INTO AND ALLOY WITH SAID JOINING METAL AND ALLOWIWNG SAID JOINING METAL TO SOLIDIFY.
Claim 4
Independent Claim
101 words
A METHOD OF MAKING AN ELECTRICAL CONDUCTOR OF A REFRACTORY ELECTRICALLY CONDUCTING MATERIAL AND A JOINING METAL SELECTED FROM THE GROUP, CONSISTING OF COPPER, SILVER, IRON, NICKEL AND THEIR ALLOYS, SAID CONDUCTOR CONDUCTING CURRENT TO LIQUID ALUMINUM CATHODE OF A CELL FOR PRODUCTION OF ALUMINUM ELECTROLYTICALLY, SAID METHOD COMPRISING ELECTRODEPOSITING FROM A MOLTEN BATH OF CRYOLITE CONTAINING ALUMINA, A THIN LAYER OF LIQUID ALUMINUM ON AN END OF SAID REFRACTORY MATERIAL, POURING LIQUID JOINING METAL INTO THE MOLTEN BATH, ALLOWING ALUMINUM TO AT LEAST ONE OF DIFFUSE INTO AND ALLOY WITH SAID JOINING METAL AND ALLOWIWNG SAID JOINING METAL TO SOLIDIFY.
References Cited (Backward Citations)
US2064184A
Cited
US1004673A
Cited
US1760586A
Cited
GB350469A
Cited
US2398132A
Cited
US2599751A
Cited
US2857663A
Cited
US2856681A
Cited
US2997524A
Cited
US3100338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |