US2905643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dewatering clay
Assignee: Thiele Kaolin Co
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Filing: 1954-06-14
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Granted: 1959-09-22
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Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 Robert F Billue
- 👤 John T Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/10; B04B1/12; Y; Y10; Y10S; Y10S264/00; Y10S264/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE PROCESS OF DEWATERING CLAY WHICH COMPRISES SUBJECTING A BODY OF FLOCCULATED CLAY-WATER MIX TO CENTRIFUGAL ACTION IN AN ENCLOSED ZONE TO FORM A WATERY EFFLUENT WHICH IS REMOVED FROM AN INTERIOR PORTION OF THE ZONE, AND A MASS OF VISCOUS PARTIALLY DEWATERED FLOCCULATED CLAY AT AN OUTER PORTION OF SAID ZONE, INTRODUCING A LIQUID DEFLOCCULATING AGENT OF HIGH SPECIFIC GRAVITY TO AN INNER PORTION OF THE CENTRIFUGAL ZONE AND CONVEYING IT SEPARATELY FROM THE CLAY-WATER MIX TO THE OUTER PORTION OF THE CENTRIFUGAL ZONE AND THERE SUPPLYING THE DEFLOCCULATING AGENT TO SAID PARTIALLY DEWATERED
Claim 2
Dependent Claim
95 words
THE PROCESS OF DEWATERING CLAY WHICH COMPRISES SUBJECTING A BODY OF FLOCCULATED CLAY-WATER MIX TO CENTRIFUGAL ACTION IN AN ENCLOSED ZONE TO FORM A WATERY EFFLUENT WHICH IS REMOVED FROM AN INTERIOR PORTION OF THE ZONE, AND A MASS OF VISCOUS PARTIALLY DEWATERED FLOCCULATED CLAY AT AN OUTER PORTION OF SAID ZONE, INTRODUCING A LIQUID DEFLOCCULATING AGENT OF HIGH SPECIFIC GRAVITY TO AN INNER PORTION OF THE CENTRIFUGAL ZONE AND CONVEYING IT SEPARATELY FROM THE CLAY-WATER MIX TO THE OUTER PORTION OF THE CENTRIFUGAL ZONE AND THERE SUPPLYING THE DEFLOCCULATING AGENT TO SAID PARTIALLY DEWATERED
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |