US2649358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting gases and solids
Assignee: MW Kellogg Co
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Filing: 1947-01-07
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Granted: 1953-08-18
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Expires: 1967-01-07
Abstract
No abstract record available.
Inventors
- 👤 George H Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:40
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005; C; C10; C10B; C10B49/00; C10B49/02; C10B49/04; C10B49/08; C10B49/10; Y; Y10; Y10S; Y10S118/00; Y10S118/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A METHOD FOR SEPARATING A GAS FROM FINELY DIVIDED SOLIDS SUSPENDED THEREIN WHICH COMPRISES PASSING A STREAM OF GAS CONTAINING SUSPENDED SOLIDS TO A POROUS MEMBRANE WHICH IS ARRANGED SUBSTANTIALLY VERTICAL AND WHICH IS SUBSTANTIALLY IMPERVIOUS TO SAID SOLIDS, SAID POROUS MEMBRANE PERMITTING THE GAS TO PASS THERETHROUGH AND AT LEAST SOME OF THE SUSPENDED SOLIDS TO REMAIN ADHERING TO THE SURFACE THEREOF, AND PASSING A PORTION OF FINELY DIVIDED SOLIDS IN ADDITION TO THE AMOUNT OF SOLIDS WHICH ARE PRESENT AS A SUSPENSION IN THE AFORSAID GAS STREAM DOWNWARDLY OVER THE SURFACE OF THE POROUS MEMBRANE ON THE SAME SIDE AT WHICH THE SOLIDS ARE ADHERING THERETO IN ORDER TO SCOUR THE SAME THEREFROM.
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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |