US3148230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory structure
Assignee: North American Refractories Co
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Filing: 1961-12-05
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Granted: 1964-09-08
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Donald C Behner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/16; F27D1/14; F27D1/141; F27D2001/1605; F27D2001/161; F27D19/00; F27D2019/0028; F27D2019/0068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE METHOD OF REPAIRING AN EXISTING REFRACTORY WALL WHICH HAS DIMINISHED FROM ITS INITIAL THICKNESS BY WEARING OF ITS HOT SIDE TOWARDS ITS COLD SIDE, SAID METHOD COMPRISING: (A) PROVIDING A STRUCTURE HAVING A PLURALITY OF OPENENDED COMPARTMENTS IN A CELLULAR ARRANGEMENT; (B) POSITIONING THE CELLULAR STRUCTURE AGAINST THE COLD SIDE OF THE REFRACTORY WALL WITH ONE OPENING OF EACH COMPARTMENT AGAINST THE WALL; (C) PREPARING A MIXTURE OF REFRACTORY MATERIAL; AND, (D) FORMATIVELY PLALCING THE REFRACTORY MATERIAL IN SELECTED ONES OF SAID COMPARTMENTS TO AT LEAST PARTIALLY FILL SUCH COMPARTMENTS FROM THE REFRACTORY WALL OUT TO A DEPTH PROVIDING APPROXIMATELY THE INITIAL WALL THICKNESS.
Claim 2
Independent Claim
105 words
THE METHOD OF REPAIRING AN EXISTING REFRACTORY WALL WHICH HAS DIMINISHED FROM ITS INITIAL THICKNESS BY WEARING OF ITS HOT SIDE TOWARDS ITS COLD SIDE, SAID METHOD COMPRISING: (A) PROVIDING A STRUCTURE HAVING A PLURALITY OF OPENENDED COMPARTMENTS IN A CELLULAR ARRANGEMENT; (B) POSITIONING THE CELLULAR STRUCTURE AGAINST THE COLD SIDE OF THE REFRACTORY WALL WITH ONE OPENING OF EACH COMPARTMENT AGAINST THE WALL; (C) PREPARING A MIXTURE OF REFRACTORY MATERIAL; AND, (D) FORMATIVELY PLALCING THE REFRACTORY MATERIAL IN SELECTED ONES OF SAID COMPARTMENTS TO AT LEAST PARTIALLY FILL SUCH COMPARTMENTS FROM THE REFRACTORY WALL OUT TO A DEPTH PROVIDING APPROXIMATELY THE INITIAL WALL THICKNESS.
References Cited (Backward Citations)
FR1184625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |