Patent US6108949A successfully refreshed from Google Patents.
Patent US2974076A successfully refreshed from Google Patents.
US2974076A
Expired / Lapsed
US
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Mixed phase, alpha-beta titanium alloys and method for making same
Assignee: Crucible Steel Company of America
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Filing: 1954-06-10
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Granted: 1961-03-07
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Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Milton B Vordahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:45
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/16; C22F1/18; C22F1/183
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
THE METHOD OF STRENGTHENING A TITANIUM BASE ALLOY HAVING A MIXED ALPHA-BETA MICROSTRUCTURE WHICH COMPRISES: HEATING SAID ALLOY TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 50* TO 400*F. BELOW THE BETA TRANSUS TEMPERATURE, AND THEREUPON RAPIDLY COOLING SUBSTANTIALLY TO ROOM TEMPERATURE.
Claim 2
Independent Claim
42 words
THE METHOD OF STRENGTHENING A TITANIUM BASE ALLOY HAVING A MIXED ALPHA-BETA MICROSTRUCTURE WHICH COMPRISES: HEATING SAID ALLOY TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 50* TO 400*F. BELOW THE BETA TRANSUS TEMPERATURE, AND THEREUPON RAPIDLY COOLING SUBSTANTIALLY TO ROOM TEMPERATURE.
Claim 3
Independent Claim
87 words
THE METHOD OF STRENGTHENIN AND THERMALLY STABILIZING A TITANIUM BASE ALLOY HAVING A MIXED ALPHA-BETA MICROSTRUCTURE BUT WITHOUT UNDULY EMBRITTLING THE SAME, WHICH COMPRISES: PLASTICALLY DEFORMING THE ALLOY AT A TEMPERATURE OF ABOUT 100 TO 750*F. BELOW THE BETA TRANSUS TEMPERATURE OF IMPARTING A FINE GRAINED INTERPERSION OF THE ALPHA AND BETA PHASE, THEREUPON SOAKING AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 150* TO 300*F. BELOW SAID BETA TRANSUS AND RAPIDILY COOLING, AND THEREUPON AGING AT ABOUT 8000* TO 900*F. FOR ABOUT 2 TO 12 HOURS.
Claim 4
Independent Claim
87 words
THE METHOD OF STRENGTHENIN AND THERMALLY STABILIZING A TITANIUM BASE ALLOY HAVING A MIXED ALPHA-BETA MICROSTRUCTURE BUT WITHOUT UNDULY EMBRITTLING THE SAME, WHICH COMPRISES: PLASTICALLY DEFORMING THE ALLOY AT A TEMPERATURE OF ABOUT 100 TO 750*F. BELOW THE BETA TRANSUS TEMPERATURE OF IMPARTING A FINE GRAINED INTERPERSION OF THE ALPHA AND BETA PHASE, THEREUPON SOAKING AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 150* TO 300*F. BELOW SAID BETA TRANSUS AND RAPIDILY COOLING, AND THEREUPON AGING AT ABOUT 8000* TO 900*F. FOR ABOUT 2 TO 12 HOURS.
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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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |