US3070970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for cooling finely divided solid particles
Assignee: Kaiser Cement and Gypsum Corp
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Filing: 1959-08-07
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Granted: 1963-01-01
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Expires: 1979-08-07
Abstract
No abstract record available.
Inventors
- 👤 Peter G Zagar
- 👤 Robert H Burns
- 👤 John C Kleiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:33
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F27B; F27B15/00; F27D9/00; F27D2009/0002; F27D2009/001; F27D2009/0013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD FOR COOLING FLUIDIZED FINE SOLID PARTICLES COMPRISING INTRODUCING SAID FLUIDIZED PARTICLES INTO A FEED ZONE, AERATING TO CAUSE UNIFORM FLOW DISTRIBUTION AND SEPARATING TRAMP IRON AND OVERSIZE PARTICLES FROM SAID FLUIDIZED STREAM, FLOWING SAID STREAM IN A CIRCUITOUS PATH ADJACENT A PLURALITY OF COOLED LARGE SURFACES, CONTINUOUSLY INTRODUCING GAS TO MAINTAIN SAID STREAM IN FLUIDIZED CONDITION, COOLING SAID SURFACES BY FLOWING A THIN STREAM OF COOLING LIQUID THEREOVER AND VAPORIZING A PORTION OF SAID LIQUID, CONTINUOUSLY REMOVING SAID VAPORIZED LIQUID, AND REMOVING SAID COOLED FLUIDIZED STREAM FROM SAID COOLING CELL.
Claim 2
Independent Claim
92 words
A METHOD FOR COOLING FLUIDIZED FINE SOLID PARTICLES COMPRISING INTRODUCING SAID FLUIDIZED PARTICLES INTO A FEED ZONE, AERATING TO CAUSE UNIFORM FLOW DISTRIBUTION AND SEPARATING TRAMP IRON AND OVERSIZE PARTICLES FROM SAID FLUIDIZED STREAM, FLOWING SAID STREAM IN A CIRCUITOUS PATH ADJACENT A PLURALITY OF COOLED LARGE SURFACES, CONTINUOUSLY INTRODUCING GAS TO MAINTAIN SAID STREAM IN FLUIDIZED CONDITION, COOLING SAID SURFACES BY FLOWING A THIN STREAM OF COOLING LIQUID THEREOVER AND VAPORIZING A PORTION OF SAID LIQUID, CONTINUOUSLY REMOVING SAID VAPORIZED LIQUID, AND REMOVING SAID COOLED FLUIDIZED STREAM FROM SAID COOLING CELL.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |