US3070468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing dispersion hardened titanium alloys
Assignee: Individual
•
Filing: 1958-10-29
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Granted: 1962-12-25
•
Expires: 1978-10-29
Abstract
No abstract record available.
Inventors
- 👤 Nicholas J Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1078; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A METHOD OF DISPERSION HARDENING A MATRIX METAL COMPRISING ESSENTIALLY AT LEAST ABOUT 80% OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF TI, ZR, AND HF, SAID MATRIX METAL BEING CHARACTERIZED BY AN ALPHA TO BETA TRANSFORMATION TEMPERATURE WHICH COMPRISES, FORMING AN ALLOY OF SAID MATRIX METAL AND CERIUM WITH UP TO ABOUT 5% OF CERIUM BUT NOT EXCEEDING THE MAXIMUM SOLUBILITY OF SAID CERIUM IN THE ALPHA SOLID SOLUTION OF THE MATRIX METAL, AND THEN SUBJECTING SAID ALLOY TO INTERNAL OXIDATION AT AN ELEVATED TEMPERATURE NOT EXCEEDING THE TEMPERATURE AT WHICH THE ALPHA PHASE TRANSFORMS TO BETA IN AN OXIDIZING ATMOSPHERE CORRESPONDING TO AN OXYGEN PRESSURE BUILD UP OCCURS AS AN OXYGEN GRADIENT AT WHICH OXYGEN BUILD UP OCCURS AS AN OXYGEN GRADIENT AT THE ALLOY INTERFACE, WHEREBY TO PROMOTE A CONTROLLED RATE OF OXYGEN DIFFUSION INTO SAID ALLOY AND CONVERT SELECTIVELY SUBSTANTIALLY SAID CONTAINES CERIUM TO REFRACTORY METAL OXIDE FINELY DISPERSED THROUGHOUT THE MATRIX METAL.
Claim 2
Independent Claim
160 words
A METHOD OF DISPERSION HARDENING A MATRIX METAL COMPRISING ESSENTIALLY AT LEAST ABOUT 80% OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF TI, ZR, AND HF, SAID MATRIX METAL BEING CHARACTERIZED BY AN ALPHA TO BETA TRANSFORMATION TEMPERATURE WHICH COMPRISES, FORMING AN ALLOY OF SAID MATRIX METAL AND CERIUM WITH UP TO ABOUT 5% OF CERIUM BUT NOT EXCEEDING THE MAXIMUM SOLUBILITY OF SAID CERIUM IN THE ALPHA SOLID SOLUTION OF THE MATRIX METAL, AND THEN SUBJECTING SAID ALLOY TO INTERNAL OXIDATION AT AN ELEVATED TEMPERATURE NOT EXCEEDING THE TEMPERATURE AT WHICH THE ALPHA PHASE TRANSFORMS TO BETA IN AN OXIDIZING ATMOSPHERE CORRESPONDING TO AN OXYGEN PRESSURE BUILD UP OCCURS AS AN OXYGEN GRADIENT AT WHICH OXYGEN BUILD UP OCCURS AS AN OXYGEN GRADIENT AT THE ALLOY INTERFACE, WHEREBY TO PROMOTE A CONTROLLED RATE OF OXYGEN DIFFUSION INTO SAID ALLOY AND CONVERT SELECTIVELY SUBSTANTIALLY SAID CONTAINES CERIUM TO REFRACTORY METAL OXIDE FINELY DISPERSED THROUGHOUT THE MATRIX METAL.
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |