Patent US2724580A successfully refreshed from Google Patents.
US2724580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mixing a pulverulent solid material and a liquid
Assignee: Stamicarbon BV
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Filing: 1953-06-17
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Granted: 1955-11-22
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Leonardus J Revallier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:47
CPC Classifications
B; B04; B04C; B04C3/00; B01; B01F; B01F25/00; B01F25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF MIXING PULVERULENT SOLID MATERIAL WITH A LIQUID WHICH COMPRISES THE STEPS OF CONTINUOUSLY FEEDING LIQUID TANGENTIALLY INTO A FIRST VERTICALLY DISPOSED RADIALLY SYMMETRICAL ROTATION SPACE TO GENERATE A LIQUID VORTEX THEREIN, DISCHARGING PART OF SAID LIQUID UPWARDLY FROM SAID VORTEX IN THE FORM OF A HOLLOW CYLINDRICAL ROTATING BODY, PERMITTING SAID UPWARDLY MOVING ROTATING BODY OF LIQUID TO DIVERGE IN A SECOND RADIALLY SYMMETRICAL ROTATION SPACE DISPOSED ABOVE SAID FIRST ROTATION SPACE, ADDING PULVERULENT SOLID MATERIAL TO THE ROTATING BODY OF LIQUID IN SAID SECOND SPACE, SAID LIQUID AND SOLID FLOWING AXIALLY DOWNWARDLY FROM SAID SECOND SPACE INTO SAID FIRST SPACE, AND DISCHARGING THE RESULTANT MIXTURE DOWNWARDLY FROM SAID VORTEX IN THE FORM OF A CYLINDRICAL ROTATING BODY OF GREATER DIAMETER THAN SAID UPWARDLY MOVING BODY.
Claim 2
Independent Claim
129 words
A METHOD OF MIXING PULVERULENT SOLID MATERIAL WITH A LIQUID WHICH COMPRISES THE STEPS OF CONTINUOUSLY FEEDING LIQUID TANGENTIALLY INTO A FIRST VERTICALLY DISPOSED RADIALLY SYMMETRICAL ROTATION SPACE TO GENERATE A LIQUID VORTEX THEREIN, DISCHARGING PART OF SAID LIQUID UPWARDLY FROM SAID VORTEX IN THE FORM OF A HOLLOW CYLINDRICAL ROTATING BODY, PERMITTING SAID UPWARDLY MOVING ROTATING BODY OF LIQUID TO DIVERGE IN A SECOND RADIALLY SYMMETRICAL ROTATION SPACE DISPOSED ABOVE SAID FIRST ROTATION SPACE, ADDING PULVERULENT SOLID MATERIAL TO THE ROTATING BODY OF LIQUID IN SAID SECOND SPACE, SAID LIQUID AND SOLID FLOWING AXIALLY DOWNWARDLY FROM SAID SECOND SPACE INTO SAID FIRST SPACE, AND DISCHARGING THE RESULTANT MIXTURE DOWNWARDLY FROM SAID VORTEX IN THE FORM OF A CYLINDRICAL ROTATING BODY OF GREATER DIAMETER THAN SAID UPWARDLY MOVING BODY.
References Cited (Backward Citations)
FR815247A
Cited
US2653801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |