US3630893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of concentrating and hydroextracting suspensions
Assignee: Ebara Corp
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Filing: 1970-04-06
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Granted: 1971-12-28
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Expires: 1990-04-06
Abstract
Abstract ACCORDING TO THIS INVENTION CAKES CAN BE OBTAINED FROM SUSPENSIONS WITHOUT THE USE OF A CENTRIFUGAL SEPARATOR, VACUUM HYDROEXTRACTOR OR PRESSURE HYDROEXTRACTOR. THIS PROBLEM IS SOLVED AS A ROLLING MOTION IS IMPARTED TO A SOLID MATTER SUSPENDED IN LIQUID THERBY TO MOVE THE SUSPENDED SOLID MATTER WHILE GRANULATING OR LUMPING THE SAME, AND THE SUSPENSION IS REASONABLY SEPARATED INTO A CAKE AND LIQUID, SAY WATER, BY TAKING THE ADVANTAGE OF THE DIFFERENCE BETWEEN THE IMPARTED MOTION OF THE SOLID MATTER AND THE MOTION OF THE LIQUID.
Inventors
- 👤 Shigemasa Tanada
- 👤 Hidetomo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:10
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02
Claims Analysis
Total Claims: 0
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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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |