US2752043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for dewatering material in a centrifugal machine
Assignee: Machinefabriek Reineveld NV
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Filing: 1953-11-12
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Granted: 1956-06-26
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Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 Pieter Van Riel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
B; B04; B04B; B04B15/00; B04B15/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD FOR DEWATERING MATERIAL IN A CENTRIFUGAL MACHINE PROVIDED WITH A PERFORATED INNER DRUM AND A PERFORATED OUTER DRUM CONCENTRICALLY SURROUNDING THE INNER DRUM AND ROTATABLE WITH AN ANGULAR SPEED SLIGHTLY DIFFERING FROM THAT OF THE INNER DRUM, WHICH CONSISTS IN INTRODUCING INTO THE INNER DRUM THE MATERIAL TO BE DEWATERED INTRODUCING INTO THE OUTER DRUM PARTICLES OF THE SAME MATERIAL OF A LARGER SIZE, THE MATERIAL FORMING A LAYER ON THE INNER WALLS OF BOTH DRUMS, DISPLACING BOTH SAID LAYERS TOWARDS THE DISCHARGE END OF THE DRUMS, AND DISCHARGING BOTH SAID LAYERS TOGETHER
Claim 2
Independent Claim
95 words
A METHOD FOR DEWATERING MATERIAL IN A CENTRIFUGAL MACHINE PROVIDED WITH A PERFORATED INNER DRUM AND A PERFORATED OUTER DRUM CONCENTRICALLY SURROUNDING THE INNER DRUM AND ROTATABLE WITH AN ANGULAR SPEED SLIGHTLY DIFFERING FROM THAT OF THE INNER DRUM, WHICH CONSISTS IN INTRODUCING INTO THE INNER DRUM THE MATERIAL TO BE DEWATERED INTRODUCING INTO THE OUTER DRUM PARTICLES OF THE SAME MATERIAL OF A LARGER SIZE, THE MATERIAL FORMING A LAYER ON THE INNER WALLS OF BOTH DRUMS, DISPLACING BOTH SAID LAYERS TOWARDS THE DISCHARGE END OF THE DRUMS, AND DISCHARGING BOTH SAID LAYERS TOGETHER
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) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |