Patent US3796788A successfully refreshed from Google Patents.
US3796788A
Expired / Lapsed
US
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Method for intensified contacting of plural fluids
Assignee: Individual
•
Filing: 1971-04-22
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Granted: 1974-03-12
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Expires: 1991-04-22
Abstract
Abstract DIFFERENT FLUIDS ARE CAUSED TO FLOW ALONG AT LEAST TWO PATHS SEPARATED BY AN UPRIGHT WALL HAVING FINE PERFORATIONS THROUGH WHICH THE STREAM OF DIFFERENT COMPONENTS ARE IN CONTACT. IF THE FLUID IS LIQUID IT CAN BE FOAMED WITH GAS AND IF THE FLUID IS A STREAM OF PARTICULATE SOLIDS IT CAN BE FLUIDIZED. TO FOAM OR FLUIDIZE, GAS CAN BE INTRODUCED THROUGH A PERFORATED WALL FROM BELOW THE STREAMS AND REMOVED ABOVE THE STREAMS.
Inventors
- 👤 L Bacs
- 👤 T Blickle
- 👤 L Balla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:11
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0253; B01D11/0257; B01J; B01J8/00; B01J8/18; B01J2219/00; B01J2219/18; B01J2219/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |