US2517042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for transferring fluidized solid particles
Assignee: MW Kellogg Co
•
Filing: 1946-12-14
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Granted: 1950-08-01
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Expires: 1966-12-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Skelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:00
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD FOR TRANSFERRING FLUIDIZED SOLID CONTACT MATERIAL BETWEEN SEPARATE CONTACT ZONES, WHEREIN GAS IS PASSED UPWARDLY THROUGH SAID CONTACT MATERIAL AT A VELOCITY SUFFICIENT TO MAINTAIN SAID MATERIAL IN THE FORM OF LOWER DENSE PHASES SEPARATED BY INTERFACES FROM SUPERIMPOSED DIFFUSE PHASES, WHICH COMPRISES THE STEPS OF: DOWNWARDLY WITHDRAWING A STREAM OF CONTACT MATERIAL FROM THE DENSE PHASE OF ONE OF SAID ZONES TO FORM A SUBSTANTIALLY VERTICAL ELONGATED COLUMN OF CONTACT MATERIAL EXERTING HYDROSTATIC PRESSURE AT THE BASE THEREOF, INTRODUCING A MATERIAL HEAVIER THAN SAID CONTACT MATERIAL AT A HIGH POINT IN SAID COLUMN, WITHDRAWING THE ADMIXTURE OF SAID CONTACT MATERIAL AND SAID HEAVIER MATERIAL FROM THE BASE OF SAID COLUMN INTO A STREAM OF CARRIER GAS TO FORM A SUSPENSION THEREOF IN SAID GAS, FLOWING SAID SUSPENSION TO A SEPARATION POINT ADJACENT THE OTHER ZONE, EFFECTING SEPARATION OF SAID CONTACT MATERIAL AND SAID HEAVIER MATERIAL, AND PASSING SAID SEPARATED CONTACT MATERIAL INTO THE DENSE PHASE OF SAID OTHER ZONE.
Claim 2
Independent Claim
162 words
A METHOD FOR TRANSFERRING FLUIDIZED SOLID CONTACT MATERIAL BETWEEN SEPARATE CONTACT ZONES, WHEREIN GAS IS PASSED UPWARDLY THROUGH SAID CONTACT MATERIAL AT A VELOCITY SUFFICIENT TO MAINTAIN SAID MATERIAL IN THE FORM OF LOWER DENSE PHASES SEPARATED BY INTERFACES FROM SUPERIMPOSED DIFFUSE PHASES, WHICH COMPRISES THE STEPS OF: DOWNWARDLY WITHDRAWING A STREAM OF CONTACT MATERIAL FROM THE DENSE PHASE OF ONE OF SAID ZONES TO FORM A SUBSTANTIALLY VERTICAL ELONGATED COLUMN OF CONTACT MATERIAL EXERTING HYDROSTATIC PRESSURE AT THE BASE THEREOF, INTRODUCING A MATERIAL HEAVIER THAN SAID CONTACT MATERIAL AT A HIGH POINT IN SAID COLUMN, WITHDRAWING THE ADMIXTURE OF SAID CONTACT MATERIAL AND SAID HEAVIER MATERIAL FROM THE BASE OF SAID COLUMN INTO A STREAM OF CARRIER GAS TO FORM A SUSPENSION THEREOF IN SAID GAS, FLOWING SAID SUSPENSION TO A SEPARATION POINT ADJACENT THE OTHER ZONE, EFFECTING SEPARATION OF SAID CONTACT MATERIAL AND SAID HEAVIER MATERIAL, AND PASSING SAID SEPARATED CONTACT MATERIAL INTO THE DENSE PHASE OF SAID OTHER ZONE.
References Cited (Backward Citations)
US2400176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |