US3293406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for baking carbonaceous linings
Assignee: Alcan Research and Development Ltd
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Filing: 1964-12-14
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Granted: 1966-12-20
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Bain Gordon Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:46
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/0014; H05B3/0019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF BAKING A CARBONACEOUS LINING WHICH IS DISPOSED, TO A THICKNESS OF AT LEAST SEVERAL INCHES, IN AN UPWARDLY FACING CAVITY OF A VESSEL AND WHICH IS COMPOSED ESSENTIALLY OF CARBON AND BINDER, ADAPTED TO RELEASE COMBUSTIBLE FUMES ON HEATING, AND IS CAPABLE OF BEING BAKED TO A HARD, COHERENT STATE, COMPRISING RADIATING INFRARED HEAT ENERGY SUBSTANTIALLY DOWNWARDLY TO AND THROUGHOUT THE SURFACE OF SAID LINING FOR A SUFFICIENT LENGTH OF TIME FROM A MULTIPLICITY OF SOURCES OF SAID ENERGY DISPOSED ABOVE AND DISTRIBUTED OVER SAID SURFACE, TO CAUSE EVOLUTION OF SAID FUMES AND TO BAKE SAID LINING TO SAID HARD, COHERENT STATE, AND WHILE ADMITTING AIR TO THE VICINITY OF SAID LINING FOR COMBUSTION, BURNING SAID FUMES IN A REGION CLOSELY ABOVE SAID LINING BY MAINTAINING SAID SOURCES, DURING SAID RADIATION, SUFFICIENTLY CLOSE TO SAID LINING, WITHIN A SPACING THEREFROM OF NOT MORE THAN FOUR INCHES, TO EFFECTUATE SUCH BURNING.
Claim 2
Independent Claim
153 words
A METHOD OF BAKING A CARBONACEOUS LINING WHICH IS DISPOSED, TO A THICKNESS OF AT LEAST SEVERAL INCHES, IN AN UPWARDLY FACING CAVITY OF A VESSEL AND WHICH IS COMPOSED ESSENTIALLY OF CARBON AND BINDER, ADAPTED TO RELEASE COMBUSTIBLE FUMES ON HEATING, AND IS CAPABLE OF BEING BAKED TO A HARD, COHERENT STATE, COMPRISING RADIATING INFRARED HEAT ENERGY SUBSTANTIALLY DOWNWARDLY TO AND THROUGHOUT THE SURFACE OF SAID LINING FOR A SUFFICIENT LENGTH OF TIME FROM A MULTIPLICITY OF SOURCES OF SAID ENERGY DISPOSED ABOVE AND DISTRIBUTED OVER SAID SURFACE, TO CAUSE EVOLUTION OF SAID FUMES AND TO BAKE SAID LINING TO SAID HARD, COHERENT STATE, AND WHILE ADMITTING AIR TO THE VICINITY OF SAID LINING FOR COMBUSTION, BURNING SAID FUMES IN A REGION CLOSELY ABOVE SAID LINING BY MAINTAINING SAID SOURCES, DURING SAID RADIATION, SUFFICIENTLY CLOSE TO SAID LINING, WITHIN A SPACING THEREFROM OF NOT MORE THAN FOUR INCHES, TO EFFECTUATE SUCH BURNING.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |