US2804387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of iron aluminum alloys
Assignee: Ford Motor Co
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Filing: 1955-11-14
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Granted: 1957-08-27
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Eric R Morgan
- 👤 Victor F Zackay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
C; C22; C22C; C22C33/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE PROCESS OF PRODUCING A DUCTILE IRON ALUMINUM ALLOY COMPRISING PRODUCING A BATH OF MOLTEN IRON CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQUILIBRIUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF THE MOLTEN IRON, PRODUCING A SUBSTANTIALLY HYDROGEN FREE BATH OF MOLTEN ALUMINUM CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQUILIBRIUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF THE MOLTEN ALUMINUM, ESTABLISHING ON THE MOLTEN IRON BATH A LAYER OF FLUORIDE CONTAINING ANHYDROUS FLUX, ADDING THE MOLTEN ALUMINUM TO THE MOLTEN IRON, INTENSIVELY AGITATION THE MIX AND PROMPTLY POURING THE MIXTURE INTO A MOLD.
Claim 2
Dependent Claim
112 words
THE PROCESS OF PRODUCING A DUCTILE IRON ALUMINUM ALLOY COMPRISING PRODUCING A BATH OF MOLTEN IRON CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQUILIBRIUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF THE MOLTEN IRON, PRODUCING A SUBSTANTIALLY HYDROGEN FREE BATH OF MOLTEN ALUMINUM CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQUILIBRIUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF THE MOLTEN ALUMINUM, ESTABLISHING ON THE MOLTEN IRON BATH A LAYER OF FLUORIDE CONTAINING ANHYDROUS FLUX, ADDING THE MOLTEN ALUMINUM TO THE MOLTEN IRON, INTENSIVELY AGITATION THE MIX AND PROMPTLY POURING THE MIXTURE INTO A MOLD.
References Cited (Backward Citations)
GB440984A
Cited
US2204585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |