US3344838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing an exothermic lining for ingot and foundry molds and hot tops
Assignee: A RESPONSABILITE DOITTAU PRODUITS METALLURGE Ltee Ste
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Filing: 1964-12-28
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Granted: 1967-10-03
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Nouveau Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:49
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/104; B22C; B22C3/00; C; C22; C22B; C22B5/00; C22B5/02; C22B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD FOR PRODUCING AN EXOTHERMIC LINING FOR INGOT AND FOUNDRY MOLDS AND HOT TOPS, COMPRISING PRODUCING AT LEAST ONE MIXTURE WITH WATER, OF A POWDER SELECTED FROM THE CLASS CONSISTING OF CALCIUM SILICIDE AND ALUMINUM SILICIDE OF A POWDER INSOLUBLE IN WATER OF AN OXIDE OF A METAL SELECTED FROM THE CLASS CONSISTING OF MANGANESE AND IRON IN AN AMOUNT EFFECTIVE TO OXIDIZE SAID SILICIDE, AND OF A FILLER AND A BINDER INSOLUBLE IN WATER, DEPOSITING SAID AT LEAST ONE MIXTURE IN AT LEAST ONE LAYER ON A POROUS SUBSTRATE BY FILTRATION, AND DRYING THE DEPOSIT AND SETTING THE BINDER AT ELEVATED TEMPERATURE.
Claim 2
Independent Claim
104 words
A METHOD FOR PRODUCING AN EXOTHERMIC LINING FOR INGOT AND FOUNDRY MOLDS AND HOT TOPS, COMPRISING PRODUCING AT LEAST ONE MIXTURE WITH WATER, OF A POWDER SELECTED FROM THE CLASS CONSISTING OF CALCIUM SILICIDE AND ALUMINUM SILICIDE OF A POWDER INSOLUBLE IN WATER OF AN OXIDE OF A METAL SELECTED FROM THE CLASS CONSISTING OF MANGANESE AND IRON IN AN AMOUNT EFFECTIVE TO OXIDIZE SAID SILICIDE, AND OF A FILLER AND A BINDER INSOLUBLE IN WATER, DEPOSITING SAID AT LEAST ONE MIXTURE IN AT LEAST ONE LAYER ON A POROUS SUBSTRATE BY FILTRATION, AND DRYING THE DEPOSIT AND SETTING THE BINDER AT ELEVATED TEMPERATURE.
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |