US2959526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous electrode electrical furnace
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1954-05-25
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Granted: 1960-11-08
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Expires: 1974-05-25
Abstract
No abstract record available.
Inventors
- 👤 John O Graybeal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:15
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; C25C3/12; C25C3/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF REPLENISHING A CONSUMED ELECTRODE PORTION OF AN ELECTRIC FURNACE ELECTRODE OF THE CONTINUOUS TYPE, COMPRISING THE STEPS OF OPERATING THE ELECTRIC FURNACE UNTIL A SUBSTANTIAL LOWER PORTION OF THE ELECTRODE IS CONSUMED, REMOVING THE ERODED SURFACE OF THE ELECTRODE FROM CURRENT-CARRYING POSITION IN SAID ELECTRIC FURNACE, POSITIONING THE ORIGINAL UPPER PORTION OF THE ELECTRODE IN CURRENT-CARRYING POSITION IN SAID ELECTRIC FURNACE, DEPOSITING A LAYER OF ELECTRODE MATERIAL IN PASTE FORM TO SAID ERODED SURFACE, PLACING A PRE-FORMED BLOCK OF ELECTRODE MATERIAL IN CONTACTING RELATION WITH THE LAYER OF PASTE MATERIAL SO FORMED, AND BONDING SAID PRE-FORMED BLOCK OF ELECTRODE MATERIAL TO SAID ERODED SURFACE BY BAKING OF SAID ELECTGRODE PASTE THROUGH CONTINUED OPERATION OF SAID ELECTRIC FURNACE.
Claim 2
Independent Claim
120 words
THE METHOD OF REPLENISHING A CONSUMED ELECTRODE PORTION OF AN ELECTRIC FURNACE ELECTRODE OF THE CONTINUOUS TYPE, COMPRISING THE STEPS OF OPERATING THE ELECTRIC FURNACE UNTIL A SUBSTANTIAL LOWER PORTION OF THE ELECTRODE IS CONSUMED, REMOVING THE ERODED SURFACE OF THE ELECTRODE FROM CURRENT-CARRYING POSITION IN SAID ELECTRIC FURNACE, POSITIONING THE ORIGINAL UPPER PORTION OF THE ELECTRODE IN CURRENT-CARRYING POSITION IN SAID ELECTRIC FURNACE, DEPOSITING A LAYER OF ELECTRODE MATERIAL IN PASTE FORM TO SAID ERODED SURFACE, PLACING A PRE-FORMED BLOCK OF ELECTRODE MATERIAL IN CONTACTING RELATION WITH THE LAYER OF PASTE MATERIAL SO FORMED, AND BONDING SAID PRE-FORMED BLOCK OF ELECTRODE MATERIAL TO SAID ERODED SURFACE BY BAKING OF SAID ELECTGRODE PASTE THROUGH CONTINUED OPERATION OF SAID ELECTRIC FURNACE.
References Cited (Backward Citations)
DE58956C
Cited
US330247A
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US473393A
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US1185959A
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FR746978A
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US2061146A
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GB674731A
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US2654707A
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US2739113A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |