US2799565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing or reducing the entrainment of fine solid particles in the gas stream of a gas producer
Assignee: EOn Ruhrgas AG
•
Filing: 1954-01-06
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Granted: 1957-07-16
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Expires: 1974-01-06
Abstract
No abstract record available.
Inventors
- 👤 Just Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:50
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD FOR REDUCING THE ENTRAINMENT OF THE FINE DUST PARTICLES IN THE GAS STREAM OF A SHAFT GAS PRODUCER IN WHICH IN THE STREAM FLOWS UPWARDLY AND COUNTERCURRENTLY TO A DOWNWARDLY MOVING BED TO SOLID LUMPY FUEL WHICH COMPRISES MAINTAINING IN THE SHAFT GAS PRODUCER, ABOVE THE GASIFICATION ZONE, A CONTINUOUS DUST FILTERING LAYER CONSISTING OF PIECES OF SAID SOLID FUELSUBSTANTIALLY COATED WITH A MOISTENING AGENT COMPRISING HYDROCARBON-CONTAINING COMPOUNDS, THE SAID FILTERING LAYER EXTENDING ENTIRELY ACROSS THE CROSS-SECTION OF THE SHAFT AND TO DEPTH WHEREIN THE AMBIENT TEMPERATURE DOES NOT EXCEED THE INITIAL BOILING POINT OF THE SAID MOISTENING AGENT.
Claim 2
Independent Claim
101 words
A METHOD FOR REDUCING THE ENTRAINMENT OF THE FINE DUST PARTICLES IN THE GAS STREAM OF A SHAFT GAS PRODUCER IN WHICH IN THE STREAM FLOWS UPWARDLY AND COUNTERCURRENTLY TO A DOWNWARDLY MOVING BED TO SOLID LUMPY FUEL WHICH COMPRISES MAINTAINING IN THE SHAFT GAS PRODUCER, ABOVE THE GASIFICATION ZONE, A CONTINUOUS DUST FILTERING LAYER CONSISTING OF PIECES OF SAID SOLID FUELSUBSTANTIALLY COATED WITH A MOISTENING AGENT COMPRISING HYDROCARBON-CONTAINING COMPOUNDS, THE SAID FILTERING LAYER EXTENDING ENTIRELY ACROSS THE CROSS-SECTION OF THE SHAFT AND TO DEPTH WHEREIN THE AMBIENT TEMPERATURE DOES NOT EXCEED THE INITIAL BOILING POINT OF THE SAID MOISTENING AGENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |