US3145182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving hydrolysis resistance of uranium carbide containing composition
Assignee: Individual
•
Filing: 1962-05-21
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Granted: 1964-08-18
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Hammond
- 👤 John D Sease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:29
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/51; G; G21; G21C; G21C3/00; G21C3/42; G21C3/58; G21C3/62; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN IMPROVED METHOD OF FABRICATING A RELATIVELY CORROSION RESISTANT METAL CARBIDE SELECTED FROM THE GROUP OF URANIUM CARBIDE, THORIUM CARBIDE AND PLUTONIUM CARBIDE WHICH COMPRISES FORMING A HMOGENEOUS MIXTURE OF THE POWDERED FORM OF SAID CARBIDE WTIH AT LEAST MORE THAN 2 AND NO MORE THAN ABOUT 35% BY WEIGHT OF A SILICIDE SELECTED FROM THE GROUP URANIUM, THORIUM AND PLUTONIUM AND AN ORGANIC BINDER, PRESSING SAID MIXTURE TO A DESIRED GREEN STRENGTH AND TO A DESIRED PREFORMED SHAPE, HEATING SAID PREFORMED SHAPE IN AN INERT ATMOSPHERE TO ABOVE THE EUTECTIC WHICH FORMS BETWEEN SAID CARBIDE AND SAID SILICIDE, MAINTAINING SAID TEMPERATURE FOR A SUFFICIENT TIME TO SINTER SAID CARBIDE TO A DESIRED DENSITY UP TO THE THEORETICAL DENSITY OF THE RESISTANT COMPOSIE CARBIDE, WHIE SAID SILICIDE WETS AND FLOWS ON THE SURFACE OF SAID SINTERING CARBIDE, AND THEREAFTER COOLING TH RESULTANT SINTERED CARBIDE TO FORM A HARD, SMOOTH, CONTINUOUS ADHERENT COATING THEREON.
Claim 2
Dependent Claim
153 words
AN IMPROVED METHOD OF FABRICATING A RELATIVELY CORROSION RESISTANT METAL CARBIDE SELECTED FROM THE GROUP OF URANIUM CARBIDE, THORIUM CARBIDE AND PLUTONIUM CARBIDE WHICH COMPRISES FORMING A HMOGENEOUS MIXTURE OF THE POWDERED FORM OF SAID CARBIDE WTIH AT LEAST MORE THAN 2 AND NO MORE THAN ABOUT 35% BY WEIGHT OF A SILICIDE SELECTED FROM THE GROUP URANIUM, THORIUM AND PLUTONIUM AND AN ORGANIC BINDER, PRESSING SAID MIXTURE TO A DESIRED GREEN STRENGTH AND TO A DESIRED PREFORMED SHAPE, HEATING SAID PREFORMED SHAPE IN AN INERT ATMOSPHERE TO ABOVE THE EUTECTIC WHICH FORMS BETWEEN SAID CARBIDE AND SAID SILICIDE, MAINTAINING SAID TEMPERATURE FOR A SUFFICIENT TIME TO SINTER SAID CARBIDE TO A DESIRED DENSITY UP TO THE THEORETICAL DENSITY OF THE RESISTANT COMPOSIE CARBIDE, WHIE SAID SILICIDE WETS AND FLOWS ON THE SURFACE OF SAID SINTERING CARBIDE, AND THEREAFTER COOLING TH RESULTANT SINTERED CARBIDE TO FORM A HARD, SMOOTH, CONTINUOUS ADHERENT COATING THEREON.
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) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |