US2986457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron ore reduction
Assignee: Individual
•
Filing: 1957-11-26
•
Granted: 1961-05-30
•
Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:14
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
MEANS FOR REDUCING IRON ORE COMPRISING A CYLINDRICAL PARTICLE HEATING CHAMBER ARRANGED AT AN ANGLE TO THE HORIZONTAL PLANE, MEANS TO SUPPLY A PLURALITY OF HEAT ABSORBING PARTICLES TO THE ELEVATED END OF SAID HEATING CHAMBER, SAID CHAMBER BEING ROTATABLY MOUNTED FOR GRADUAL ADVANCE OF SAID PARTICLES TOWARD THE LOWER END, MEANS TO SUPPLY HEAT TO SAID HEATING CHAMBER, A CYLINDRICAL REDUCTION CHAMBER AT LEAST IN PART AT A LOWER ELEVATION THAN THE HEATING CHAMBER AND ARRANGED FOR DISCHARGE OF PARTICLES FROM SAID HEATING CHAMBER INTO SAID REDUCTION CHAMBER, SAID REDUCTION CHAMBER BEING ARRANGED AT AN ANGLE TO THE HORIZONTAL PLANE AND ROTATABLY MOUNTED FOR GRADUAL ADVANCE OF THE CONTENTS TOWARD AN OUTLET, MEANS TO SUPPLY IRON ORE AND CARBONACEOUS MATERIAL TO SAID REDUCTION CHAMBER, MEANS TO SEPARATE REDUCED IRON AND SAID HEAT ABSORBING PARTICLES ADJACENT SAID OUTLET, AND MEANS TO RETURN SAID HEAT ABSORBING PARTICLES TO THE HEATING CHAMBER FOR REHEATING.
Claim 2
Dependent Claim
152 words
MEANS FOR REDUCING IRON ORE COMPRISING A CYLINDRICAL PARTICLE HEATING CHAMBER ARRANGED AT AN ANGLE TO THE HORIZONTAL PLANE, MEANS TO SUPPLY A PLURALITY OF HEAT ABSORBING PARTICLES TO THE ELEVATED END OF SAID HEATING CHAMBER, SAID CHAMBER BEING ROTATABLY MOUNTED FOR GRADUAL ADVANCE OF SAID PARTICLES TOWARD THE LOWER END, MEANS TO SUPPLY HEAT TO SAID HEATING CHAMBER, A CYLINDRICAL REDUCTION CHAMBER AT LEAST IN PART AT A LOWER ELEVATION THAN THE HEATING CHAMBER AND ARRANGED FOR DISCHARGE OF PARTICLES FROM SAID HEATING CHAMBER INTO SAID REDUCTION CHAMBER, SAID REDUCTION CHAMBER BEING ARRANGED AT AN ANGLE TO THE HORIZONTAL PLANE AND ROTATABLY MOUNTED FOR GRADUAL ADVANCE OF THE CONTENTS TOWARD AN OUTLET, MEANS TO SUPPLY IRON ORE AND CARBONACEOUS MATERIAL TO SAID REDUCTION CHAMBER, MEANS TO SEPARATE REDUCED IRON AND SAID HEAT ABSORBING PARTICLES ADJACENT SAID OUTLET, AND MEANS TO RETURN SAID HEAT ABSORBING PARTICLES TO THE HEATING CHAMBER FOR REHEATING.
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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |