US3337206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic and tar bonded brick furnace lining
Assignee: Veitscher Magnesitwerke AG
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Filing: 1964-07-06
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Granted: 1967-08-22
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Bouvier Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:28
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/44; F; F27; F27D; F27D1/00; F27D1/04; F27D1/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A LINING FOR A METALLURGICAL VESSEL, COMPRISING A PLURALITY OF LAYERS TO TWO TYPES OF REFRACTORY SHAPED ELEMENTS, SAID SHAPED ELEMENTS BEING OF REFRACTORY MATERIALS SELECTED FROM THE GROUP CONSISTING OF CHEMICALLY BASIC AND NEUTRAL MATERIALS, ONE OF SAID TYPES OF SHAPED ELEMENTS BEING CERAMICALLY BONDED ELEMENTS TREATED WITH A CARBON-CONTAINING MEDIUM AND SUBJECT TO THERMAL EXPANSION AT OPERATING TEMPERATURES OF THE METALLURGICAL VESSEL, AND THE OTHER TYPE SAID SHAPED ELEMENTS BEING UNFIRED AND BONDED BY A CORBON-CONTAINING MEDIUM, SAID BONDED SHAPED ELEMENTS BEING COMPRESSIBLE, AND EACH OF SAID LINING LAYERS CONSISTING OF SAID ONE TYPE OF SHAPED ELEMENTS INTERSPERSED WITH A SUFFICIENT NUMBER OF THE SHAPED ELEMENTS OF THE OTHER TYPE FOR THE LATTER ELEMENTS TO TAKE UP THE THERMAL EXPANSION OF THE CERAMICALLY BONDED ELEMENTS.
Claim 2
Dependent Claim
127 words
A LINING FOR A METALLURGICAL VESSEL, COMPRISING A PLURALITY OF LAYERS TO TWO TYPES OF REFRACTORY SHAPED ELEMENTS, SAID SHAPED ELEMENTS BEING OF REFRACTORY MATERIALS SELECTED FROM THE GROUP CONSISTING OF CHEMICALLY BASIC AND NEUTRAL MATERIALS, ONE OF SAID TYPES OF SHAPED ELEMENTS BEING CERAMICALLY BONDED ELEMENTS TREATED WITH A CARBON-CONTAINING MEDIUM AND SUBJECT TO THERMAL EXPANSION AT OPERATING TEMPERATURES OF THE METALLURGICAL VESSEL, AND THE OTHER TYPE SAID SHAPED ELEMENTS BEING UNFIRED AND BONDED BY A CORBON-CONTAINING MEDIUM, SAID BONDED SHAPED ELEMENTS BEING COMPRESSIBLE, AND EACH OF SAID LINING LAYERS CONSISTING OF SAID ONE TYPE OF SHAPED ELEMENTS INTERSPERSED WITH A SUFFICIENT NUMBER OF THE SHAPED ELEMENTS OF THE OTHER TYPE FOR THE LATTER ELEMENTS TO TAKE UP THE THERMAL EXPANSION OF THE CERAMICALLY BONDED ELEMENTS.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |