US3341642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compacting of particulate metals
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1965-06-04
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Granted: 1967-09-12
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Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 John H Mahar
- 👤 Ronald V Trense
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:42
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR PRODUCING A BRIQUETTE COMPRISING ADMIXING PARTICULATE METALS WITH A PETROLEUM OIL FRACTION HAVING A PENETRATION INDEX AT 77*F. RANGING FROM ABOUT 85 TO ABOUT 100 AND A SOFTENING POINT RANGING FROM ABOUT 110*F. TO ABOUT 140*F., IN CONCENTRATION RANGING FROM ABOUT 0.05 TO ABOUT 10 PERCENT, BASED ON THE WEIGHT OF THE METAL, PRESSING THE MIXTURE BETWEEN OPPOSING SURFACES AT PRESSURES RANGING FROM ABOUT 20,000 POUNDS PER SQUARE INCH AND HIGHER TO FORM A BRIQUETTE, AND THEN HEAT-TREATING THE BRIQUETTE IN AN OXYGEN-CONTAINING ATMOSPHERE AT TEMPERATURES RANGING FROM ABOUT 300*F. TO ABOUT 600*F. FOR A SUFFICIENT TIME TO CAUSE A CHEMICAL CHANGE AND BRING ABOUT A FINAL CURING OF THE SAID OIL FRACTION WHICH BONDS TOGETHER THE PARTICULATE METALS.
Claim 2
Dependent Claim
122 words
A PROCESS FOR PRODUCING A BRIQUETTE COMPRISING ADMIXING PARTICULATE METALS WITH A PETROLEUM OIL FRACTION HAVING A PENETRATION INDEX AT 77*F. RANGING FROM ABOUT 85 TO ABOUT 100 AND A SOFTENING POINT RANGING FROM ABOUT 110*F. TO ABOUT 140*F., IN CONCENTRATION RANGING FROM ABOUT 0.05 TO ABOUT 10 PERCENT, BASED ON THE WEIGHT OF THE METAL, PRESSING THE MIXTURE BETWEEN OPPOSING SURFACES AT PRESSURES RANGING FROM ABOUT 20,000 POUNDS PER SQUARE INCH AND HIGHER TO FORM A BRIQUETTE, AND THEN HEAT-TREATING THE BRIQUETTE IN AN OXYGEN-CONTAINING ATMOSPHERE AT TEMPERATURES RANGING FROM ABOUT 300*F. TO ABOUT 600*F. FOR A SUFFICIENT TIME TO CAUSE A CHEMICAL CHANGE AND BRING ABOUT A FINAL CURING OF THE SAID OIL FRACTION WHICH BONDS TOGETHER THE PARTICULATE METALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |