Patent US3303561A successfully refreshed from Google Patents.
US3303561A
Expired / Lapsed
US
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Process for the preparation of an ironaluminum alloy
Assignee: Individual
•
Filing: 1963-02-26
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Granted: 1967-02-14
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Cabane Gerard
- 👤 Mouturat Pierre
- 👤 Petit Jean-Francois
- 👤 Sainfort Gerard
- 👤 Salesse Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:00
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; G21C3/07; C; C21; C21C; C21C7/00; C22; C22C; C22C21/00; C22C33/00; C22C33/04; C22C38/00; C22C38/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988; Y10T29/49991
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
A PROCESS FOR THE PREPARATION OF AN IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM, UP TO 1% BY WEIGHT OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, NIOBIUM, TITANIUM, YTTRIUM, THE RARE EARTHS, BORON AND MIXTURES THEREOF AND THE BALANCE IRON, COMPRISING THE STEPS OF: MELTING SAID IRON, INCORPORATING SAID ADDITIVE AND SAID ALUMINUM INTO SAID MOLTEN IRON, CASTING WITH ONLY A SIGHT AMOUNT OF SUPERHEAT TO PRODUCE, AFTER SOLIDFICATION AND COOLING OF THE ALLOY, AN INGOT THEREOF, AND HOT WORKING SAID INGOT.
Claim 2
Dependent Claim
94 words
A PROCESS FOR THE PREPARATION OF AN IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM, UP TO 1% BY WEIGHT OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, NIOBIUM, TITANIUM, YTTRIUM, THE RARE EARTHS, BORON AND MIXTURES THEREOF AND THE BALANCE IRON, COMPRISING THE STEPS OF: MELTING SAID IRON, INCORPORATING SAID ADDITIVE AND SAID ALUMINUM INTO SAID MOLTEN IRON, CASTING WITH ONLY A SIGHT AMOUNT OF SUPERHEAT TO PRODUCE, AFTER SOLIDFICATION AND COOLING OF THE ALLOY, AN INGOT THEREOF, AND HOT WORKING SAID INGOT.
Claim 3
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF AN AT LEAST BINARY IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM AND THE BALANCE IRON, SAID ALLOY BEING CHARACTERIZED BY A RELATIVELY LOW BRITTLENESS PERMITTING MACHINING OPERATIONS, COMPRISING THE STEPS OF: MELTING SAID IRON, ADDING SAID ALUMINUM TO SAID MOLTEN IRON, CASTING AT A TEMPERATURE LESS THAN 50%*C. ABOVE THE TEMPERATURE OF SOLIDIFICATION OF THE ALLOY INTO A PREHEATED INGOT MOLD TO PRODUCE, AFTER SOLIDFICATION AND COOLING, AN INGOT THEREOF, AND DESTROYING THE CAST STRUCTURE OF SAID INGOT BY HOT STATE MECHANICAL WORKING AND DEFORMATION.
Claim 4
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF AN AT LEAST BINARY IRON-ALUMINUM ALLOY CONSISTING ESSENTIALLY OF BETWEEN GREATER THAN 18% AND ABOUT 40% BY WEIGHT OF ALUMINUM AND THE BALANCE IRON, SAID ALLOY BEING CHARACTERIZED BY A RELATIVELY LOW BRITTLENESS PERMITTING MACHINING OPERATIONS, COMPRISING THE STEPS OF: MELTING SAID IRON, ADDING SAID ALUMINUM TO SAID MOLTEN IRON, CASTING AT A TEMPERATURE LESS THAN 50%*C. ABOVE THE TEMPERATURE OF SOLIDIFICATION OF THE ALLOY INTO A PREHEATED INGOT MOLD TO PRODUCE, AFTER SOLIDFICATION AND COOLING, AN INGOT THEREOF, AND DESTROYING THE CAST STRUCTURE OF SAID INGOT BY HOT STATE MECHANICAL WORKING AND DEFORMATION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |