Patent US2647885A successfully refreshed from Google Patents.
Patent US2533074A successfully refreshed from Google Patents.
US2533074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary ore concentrator
Assignee: Colorado Iron Works Co
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Filing: 1948-04-12
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Granted: 1950-12-05
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Expires: 1968-04-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Weinig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF SEPARATING ORES CONTAINING LIGHT PARTICLES, SUCH AS GANGUE, A COARSE CONCENTRATE, AND A FINE CONCENTRATE, COMPRISING; CONFINIG A TEETER COLUMN IN A SUBSTANTIALLY ANNULAR ZONE WITH THE AXIS OF THE TEETER COLUMN DISPOSED SUBSTANTIALLY VERTICALLY, SUPPORTING THE BOTTOM ANNULAR AREA OF THE TEETER COLUMN, APPLYING ROTATING FORCES TO THE INNER SURFACE OF THE TEETER COLUMN AND FEEDING WATER INTO THE TEETER COLUMN PRODUCING A SPIRALLY UPWARD MOVEMENT OF WATER IN THE ZONE, THE UPWARD MOVEMENT OF THE WATER CARRYING LIGHT PARTICLES UPWARDLY FOR DISCHARGE FROM THE UPPER END OF THE ZONE AND THE CONCENTRATES MOVING TO THE LOWER END OF THE ZONE,
Claim 2
Independent Claim
105 words
A METHOD OF SEPARATING ORES CONTAINING LIGHT PARTICLES, SUCH AS GANGUE, A COARSE CONCENTRATE, AND A FINE CONCENTRATE, COMPRISING; CONFINIG A TEETER COLUMN IN A SUBSTANTIALLY ANNULAR ZONE WITH THE AXIS OF THE TEETER COLUMN DISPOSED SUBSTANTIALLY VERTICALLY, SUPPORTING THE BOTTOM ANNULAR AREA OF THE TEETER COLUMN, APPLYING ROTATING FORCES TO THE INNER SURFACE OF THE TEETER COLUMN AND FEEDING WATER INTO THE TEETER COLUMN PRODUCING A SPIRALLY UPWARD MOVEMENT OF WATER IN THE ZONE, THE UPWARD MOVEMENT OF THE WATER CARRYING LIGHT PARTICLES UPWARDLY FOR DISCHARGE FROM THE UPPER END OF THE ZONE AND THE CONCENTRATES MOVING TO THE LOWER END OF THE ZONE,
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) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |