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Patent US4894066A successfully refreshed from Google Patents.
US4894066A
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Method to produce fuel from solid urban refuse, the method including also an organic composted fraction
Assignee: Daneco Danielli Ecologia SpA
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Filing: 1988-04-19
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Granted: 1990-01-16
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Expires: 2008-04-19
Abstract
Abstract Method to produce fuel from solid urban refuse, a traditional alternative fuel, which is known as "refuse derived fuel", being mixed in desired quantities with dry, mature compost.
Inventors
- 👤 Luigi Castelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:40
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; Y; Y02; Y02E; Y02E50/00; Y02E50/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
32 words
A method for producing fuel from solid urban refuse, comprising composting the organic fraction of the refuse with an accelerated forced-draught system, and mixing the composted organic fraction with dry, mature compost.
Claim 2
Independent Claim
32 words
A method for producing fuel from solid urban refuse, comprising composting the organic fraction of the refuse with an accelerated forced-draught system, and mixing the composted organic fraction with dry, mature compost.
Claim 3
Dependent Claim
26 words
A method as recited in claim 1, further comprising separating inert material in the refuse from the organic fraction before said composting of the organic fraction.
Claim 4
Dependent Claim
26 words
A method as recited in claim 1, further comprising separating inert material in the refuse from the organic fraction after said composting of the organic fraction.
Claim 5
Dependent Claim
12 words
A method as recited in claim 1, further comprising refining the refuse.
Claim 6
Dependent Claim
16 words
A method as recited in claim 4, wherein said refining is carried out before said composting.
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) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |