US3093497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayable basic refractory composition for repairing the hot basic refractory linings of high temperature furnaces, and method
Assignee: Quigley Co Inc
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Filing: 1960-05-23
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Granted: 1963-06-11
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Demaison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:55
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/42; C04B35/12; C04B35/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A SPRAYABLE COATING COMPOSITION FOR REPAIRING HOT BASIC REFRACTORY LININGS OF HIGH TEMPERATURE FURNACES WHILE THE FURNACES ARE IN OPERATION CONSISTING ESSENTIALLY OF AN AQUEOUS SLURRY OF SPRAYABLE CONSISTENCY CONTAINING REFRACTORY MATERIAL COMPOSED OF CHROME ORE AND FREE MAGNESIA, THE AMOUNT OF MAGNESIA BEING MATERIALLY GREATER THAN THE AMOUNT OF CHROME ORE, AND THE AMOUNT OF CHROME ORE BEING AT LAST 10 PARTS BY WEIGHT OF THE REFRACTORY MATERIAL, THE PARTICLE SIZE OF THE CHROME ORE BEING SUCH THAT ALL OF THE ORE WILL PASS THROUGH A 20 MESH SCREEN, 25% TO 40% WILL REMAIN ON A 100 MESH SCREEN, 35% TO 50% WILL REMAIN ON A 200 MESH SCREEN 40% TO 60% WILL REMAIN ON A 325 MESH SCREEN AND 40% TO 60% WILL PASS THROUGH A 325 MESH SCREEN, AND THE PARTICLE SIZE OF THE MAGNESIA BEING SUCH THAT ALL OF THE MAGNESIA WILL PASS THROUGH A 12 MESH SCREEN, 50% TO 80% WILL REMAIN ON A 100 MESH SCREEN, 70% TO 90% WILL REMAIN ON A 200 MESH SCREEN, 80% TO 95% WILL REMAIN ON A 325 MESH SCREEN AND 5% TO 20% WILL PASS THROUGH A 325 MESH SCREEN.
Claim 2
Dependent Claim
193 words
A SPRAYABLE COATING COMPOSITION FOR REPAIRING HOT BASIC REFRACTORY LININGS OF HIGH TEMPERATURE FURNACES WHILE THE FURNACES ARE IN OPERATION CONSISTING ESSENTIALLY OF AN AQUEOUS SLURRY OF SPRAYABLE CONSISTENCY CONTAINING REFRACTORY MATERIAL COMPOSED OF CHROME ORE AND FREE MAGNESIA, THE AMOUNT OF MAGNESIA BEING MATERIALLY GREATER THAN THE AMOUNT OF CHROME ORE, AND THE AMOUNT OF CHROME ORE BEING AT LAST 10 PARTS BY WEIGHT OF THE REFRACTORY MATERIAL, THE PARTICLE SIZE OF THE CHROME ORE BEING SUCH THAT ALL OF THE ORE WILL PASS THROUGH A 20 MESH SCREEN, 25% TO 40% WILL REMAIN ON A 100 MESH SCREEN, 35% TO 50% WILL REMAIN ON A 200 MESH SCREEN 40% TO 60% WILL REMAIN ON A 325 MESH SCREEN AND 40% TO 60% WILL PASS THROUGH A 325 MESH SCREEN, AND THE PARTICLE SIZE OF THE MAGNESIA BEING SUCH THAT ALL OF THE MAGNESIA WILL PASS THROUGH A 12 MESH SCREEN, 50% TO 80% WILL REMAIN ON A 100 MESH SCREEN, 70% TO 90% WILL REMAIN ON A 200 MESH SCREEN, 80% TO 95% WILL REMAIN ON A 325 MESH SCREEN AND 5% TO 20% WILL PASS THROUGH A 325 MESH SCREEN.
References Cited (Backward Citations)
US2358652A
Cited
US2809126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |