US2742001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for firing finegrained little reactive fuels
Assignee: Stamicarbon BV
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Filing: 1953-02-02
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Granted: 1956-04-17
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Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Kardaun Georg
- 👤 Willem Van Loon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:26
CPC Classifications
F; F23; F23K; F23K3/00; F23K2203/00; F23K2203/006; F23K2203/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR BURNING FINE-GRAINED FUEL CONTAINING A LOW PERCENTAGE OF VOLATILE MATTER WHICH COMPRISES THE STEPS OF CONTINUOUSLY FEEDING SAID FUEL TO A BED, MAINTAINING SAID FUEL BED IN INCANDESCENT AND FLUIDIZED STATE AT A TEMPERATUR OF FROM 600* TO 1000* C. BY MEANS OF A CURRENT OF COMBUSTION AIR, SAID FUEL BEING PARTIALLY BURNED IN SAID FLUIDIZED BED, CONTINUOUSLY WITHDRAWING SOLID FUEL FROM SAID FLUIDIZED BED AT A TEMPERATURE WITHIN THE SAID RANGE AND COMPLETING THE COMBUSTION OF SAID SOLID FUEL IN A COMBUSTION CHAMBER BY PROJECTING ALONG WITH A CURRENT OF COMBUSTION AIR FLOWING IN PARALLEL FLOW WITH SAID FUEL.
Claim 2
Dependent Claim
103 words
A PROCESS FOR BURNING FINE-GRAINED FUEL CONTAINING A LOW PERCENTAGE OF VOLATILE MATTER WHICH COMPRISES THE STEPS OF CONTINUOUSLY FEEDING SAID FUEL TO A BED, MAINTAINING SAID FUEL BED IN INCANDESCENT AND FLUIDIZED STATE AT A TEMPERATUR OF FROM 600* TO 1000* C. BY MEANS OF A CURRENT OF COMBUSTION AIR, SAID FUEL BEING PARTIALLY BURNED IN SAID FLUIDIZED BED, CONTINUOUSLY WITHDRAWING SOLID FUEL FROM SAID FLUIDIZED BED AT A TEMPERATURE WITHIN THE SAID RANGE AND COMPLETING THE COMBUSTION OF SAID SOLID FUEL IN A COMBUSTION CHAMBER BY PROJECTING ALONG WITH A CURRENT OF COMBUSTION AIR FLOWING IN PARALLEL FLOW WITH SAID FUEL.
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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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |