US2816829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nodular iron manufacture
Assignee: Ford Motor Co
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Filing: 1955-11-07
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Granted: 1957-12-17
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Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Harold N Bogart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:21
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE RPOCESS OF PRODUCING NODULAR IRON CASTING COMPRISING PREPARING A MOLTEN ALLOY COMPRISING IRON, SILICON AND CARBON OF SUCH COMPOSITION THAT IF CAST WITHOUT INOCULATION WOULD SOLIDIFY TO YIELD ORDINARY FLAKE GRAPHITE CONTAINING GREY IRON, ADDING TO THIS MOLTEN ALLOY A SOLID FERRO-ALLOY CONTAINING A NODULARIZING AGENT, AND THEN ADDING TO THE COMBINATION A MOLTEN FERRO-ALLOY CONTAINING A SUBSTANTIAL AMOUNT OF SILICON AND A SOLID ALLOY CONTAINING A SUBSTANTIAL AMOUNT OF SILICON WHEREBY THE ENTIRE MOLTEN MASS IS CAUSED TO SOLIDIFY WITH THE GRAPHITIC CARBON IN THE NODULAR FORM.
Claim 2
Dependent Claim
89 words
THE RPOCESS OF PRODUCING NODULAR IRON CASTING COMPRISING PREPARING A MOLTEN ALLOY COMPRISING IRON, SILICON AND CARBON OF SUCH COMPOSITION THAT IF CAST WITHOUT INOCULATION WOULD SOLIDIFY TO YIELD ORDINARY FLAKE GRAPHITE CONTAINING GREY IRON, ADDING TO THIS MOLTEN ALLOY A SOLID FERRO-ALLOY CONTAINING A NODULARIZING AGENT, AND THEN ADDING TO THE COMBINATION A MOLTEN FERRO-ALLOY CONTAINING A SUBSTANTIAL AMOUNT OF SILICON AND A SOLID ALLOY CONTAINING A SUBSTANTIAL AMOUNT OF SILICON WHEREBY THE ENTIRE MOLTEN MASS IS CAUSED TO SOLIDIFY WITH THE GRAPHITIC CARBON IN THE NODULAR FORM.
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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |