Patent US1857960A successfully refreshed from Google Patents.
Patent US3404081A successfully refreshed from Google Patents.
US3404081A
Expired / Lapsed
US
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Electrolytic reduction cell having detachably supported electrodes
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1965-08-09
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Granted: 1968-10-01
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Errol W Cummings
- 👤 John R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:51
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; C25C3/12; C25C3/125; C25C3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
AN ELECTROLYTIC REDUCTION CELL COMPRISING: (A) A LINING WHICH DEFINES A CAVITY ADAPTED TO CONTAIN AN ELECTROLYTE; (B) A PREBAKED ANODE DISPOSED WITHIN THE CAVITY (C) A FLEXIBLE BUS CONDUCTOR CONNECTED TO AN ANODE BUS BAR AND POSITIONED ABOVE THE CAVITY IN COMBINATION WITH (D) AN ELONGATED ELECTRICAL CONNECTION PLATE ATTACHED TO THE FLEXIBLE BUS CONDUCTOR AND POSITIONED ABOVE THE CAVITY, WITH THE AXIS OF THE PLATE BEING SUBSTANTIALLY IN A HORIZONTAL PLANE; (E) SLIDE MEANS POSITIONED ABOVE THE CAVITY AND ADAPTED TO RECEIVE THE EXTREMITY OF THE CONNECTION PLATE REMOVED FROM THE ANODE BUS AND BE SLIDABLY ADJUSTABLE ALONG A VERTICAL PLANE; (F) A METAL CONDUCTOR BAR, THE UPPER PORTION OF WHICH IS ADAPTED TO BE HELD AGAINST THE ELECTRICAL CONNECTION PLATE IN CURRENT TRANSMITTING CONTACT; (G) MEANS FOR HOLDING THE METAL CONDUCTOR BAR AND ELECTRICAL CONNECTION PLATE WITH VERTICAL PRESSURE IN CURRENT TRANSMITTING CONTACT; (H) MEANS FOR ATTACHING THE PREBAKED ANODE TO THE LOWER END OF THE METAL CONDUCTOR BAR.
Claim 2
Dependent Claim
162 words
AN ELECTROLYTIC REDUCTION CELL COMPRISING: (A) A LINING WHICH DEFINES A CAVITY ADAPTED TO CONTAIN AN ELECTROLYTE; (B) A PREBAKED ANODE DISPOSED WITHIN THE CAVITY (C) A FLEXIBLE BUS CONDUCTOR CONNECTED TO AN ANODE BUS BAR AND POSITIONED ABOVE THE CAVITY IN COMBINATION WITH (D) AN ELONGATED ELECTRICAL CONNECTION PLATE ATTACHED TO THE FLEXIBLE BUS CONDUCTOR AND POSITIONED ABOVE THE CAVITY, WITH THE AXIS OF THE PLATE BEING SUBSTANTIALLY IN A HORIZONTAL PLANE; (E) SLIDE MEANS POSITIONED ABOVE THE CAVITY AND ADAPTED TO RECEIVE THE EXTREMITY OF THE CONNECTION PLATE REMOVED FROM THE ANODE BUS AND BE SLIDABLY ADJUSTABLE ALONG A VERTICAL PLANE; (F) A METAL CONDUCTOR BAR, THE UPPER PORTION OF WHICH IS ADAPTED TO BE HELD AGAINST THE ELECTRICAL CONNECTION PLATE IN CURRENT TRANSMITTING CONTACT; (G) MEANS FOR HOLDING THE METAL CONDUCTOR BAR AND ELECTRICAL CONNECTION PLATE WITH VERTICAL PRESSURE IN CURRENT TRANSMITTING CONTACT; (H) MEANS FOR ATTACHING THE PREBAKED ANODE TO THE LOWER END OF THE METAL CONDUCTOR BAR.
References Cited (Backward Citations)
GB922290A
Cited
US3245898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |