US2772956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of carbonyl iron powder
Assignee: Huntington Alloys Corp
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Filing: 1955-06-24
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Granted: 1956-12-04
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Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 West De Witt Henry
- 👤 Phelps William Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:32
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/30; B22F9/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS FOR PRODUCING DIRECTLY IN THE DECOMPOSITION SPACE OF A CARBONYL DECOMPOSER A CARBONYL-IRON POWER CHARACTERIZED BY A SUBSTANTIALLY UNIFORM PARTICLE SIZE AND HIGH Q VALUES AT HIGH FREQUENCIES OF THE ORDER OF ABOUT 20 TO 50 MEGACYCLES PER SECOND AND ABOVE COMPRISING FEEDING INTO THE DECOMPOSER IRON-CARBONYL VAPOR, CARBON MONOXIDE, AND EFFECTIVE AMOUNTS OF AMMONIA IN A VOLUMETRIC RATIO OF AMMONIA TO IRON CARBONYL OF UP TO ABOUT 1:1, SO HEATING THE DECOMPOSER THAT THE BOTTOM ZONE THEREOF IS MAINTAINED AT A HIGHER TEMPERATURE THAN THE PORTIONS OF THE DECOMPOSER ABOVE THE BOTTOM ZONE, THE TEMPERATURE OF THE BOTTOM ZONE BEING BETWEEN ABOUT 370* C. AND 500* C., AND CONTROLLING THE GRADE OF CARBONYL-IRON POWDER PRODUCED BY REGULATING THE TEMPERATURE OF THE UPPER ZONE OF THE DECOMPOSER AT A TEMPERATURE LOWER THAN THE TEMPERATURE
Claim 2
Dependent Claim
136 words
A PROCESS FOR PRODUCING DIRECTLY IN THE DECOMPOSITION SPACE OF A CARBONYL DECOMPOSER A CARBONYL-IRON POWER CHARACTERIZED BY A SUBSTANTIALLY UNIFORM PARTICLE SIZE AND HIGH Q VALUES AT HIGH FREQUENCIES OF THE ORDER OF ABOUT 20 TO 50 MEGACYCLES PER SECOND AND ABOVE COMPRISING FEEDING INTO THE DECOMPOSER IRON-CARBONYL VAPOR, CARBON MONOXIDE, AND EFFECTIVE AMOUNTS OF AMMONIA IN A VOLUMETRIC RATIO OF AMMONIA TO IRON CARBONYL OF UP TO ABOUT 1:1, SO HEATING THE DECOMPOSER THAT THE BOTTOM ZONE THEREOF IS MAINTAINED AT A HIGHER TEMPERATURE THAN THE PORTIONS OF THE DECOMPOSER ABOVE THE BOTTOM ZONE, THE TEMPERATURE OF THE BOTTOM ZONE BEING BETWEEN ABOUT 370* C. AND 500* C., AND CONTROLLING THE GRADE OF CARBONYL-IRON POWDER PRODUCED BY REGULATING THE TEMPERATURE OF THE UPPER ZONE OF THE DECOMPOSER AT A TEMPERATURE LOWER THAN THE TEMPERATURE
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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |