US2817439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting the viscosity of heavy-material suspensions in the dressing of ores
Assignee: Skb Schuchtermann & Kremer Bau
•
Filing: 1954-11-10
•
Granted: 1957-12-24
•
Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 Teuteberg Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
B; B03; B03B; B03B13/00; B03B13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN THE METHOD FOR THE DRESSING OF MINERAL IN A SINK SEPARATOR, UTILIZING A HEAVY LIQUIDSTREAM MAINTAINED AT A SUBSTANTIALLY CONSTANT SPECFIC GRAVITY, THE IMPROVEMENT FOR REGULATING THE VIXCOSITY OF THE HEAVY LIQUID,WHICH COMPRISES CENTRIFUGALLY SEPARATING A PARTIAL STREAM PREDOMINANTLY CONTAINING THE FINE-GRAINED, VISCOSITY-INCREASING COMPONENTS FROM THE STREAM OF HEAVY LIQUID, SUBSTANTIALLY CONTINUOUSLY DETERMINING ANY VARIATIONS IN THE SPECIFIC GRAVITY OF THE SEPARATED PARTIAL STREAM PREDOMINANTLY
Claim 2
Dependent Claim
66 words
IN THE METHOD FOR THE DRESSING OF MINERAL IN A SINK SEPARATOR, UTILIZING A HEAVY LIQUIDSTREAM MAINTAINED AT A SUBSTANTIALLY CONSTANT SPECFIC GRAVITY, THE IMPROVEMENT FOR REGULATING THE VIXCOSITY OF THE HEAVY LIQUID,WHICH COMPRISES CENTRIFUGALLY SEPARATING A PARTIAL STREAM PREDOMINANTLY CONTAINING THE FINE-GRAINED, VISCOSITY-INCREASING COMPONENTS FROM THE STREAM OF HEAVY LIQUID, SUBSTANTIALLY CONTINUOUSLY DETERMINING ANY VARIATIONS IN THE SPECIFIC GRAVITY OF THE SEPARATED PARTIAL STREAM PREDOMINANTLY
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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |