US3687094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator apparatus
Assignee: GEA Group AG
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Filing: 1970-08-27
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Granted: 1972-08-29
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Expires: 1990-08-27
Abstract
Abstract A system for incinerating municipal waste and refuse wherein a movable grate serves as the sole means for controlling the rate at which the refuse traverses the incinerator. The movable grate preferably comprises a plurality of rotary grate members driven so that their upper surfaces advance the refuse while their lower sides carry the ash away from the burning chamber.
Inventors
- 👤 Richard Menigat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:21
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/002; F23G5/44; F23G2203/00; F23G2203/103
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
A refuse incinerator, comprising housing means forming an incinerator chamber having a downwardly extending inlet column at one side thereof; and a moving grate extending along the bottom of said chamber from said column and exclusively controlling the rate at which refuse is fed to and through said chamber, said moving grate comprising an array of interleaved rotary-grate drums all rotated in the same sense, said drums being driven at progressively higher speeds in the downstream direction.
Claim 2
Dependent Claim
77 words
A refuse incinerator, comprising housing means forming an incinerator chamber having a downwardly extending inlet column at one side thereof; and a moving grate extending along the bottom of said chamber from said column and exclusively controlling the rate at which refuse is fed to and through said chamber, said moving grate comprising an array of interleaved rotary-grate drums all rotated in the same sense, said drums being driven at progressively higher speeds in the downstream direction.
Claim 3
Dependent Claim
102 words
A refuse incinerator comprising housing means forming an incinerator chamber having a downwardly extending inlet column at one side thereof; and a moving grate extending along the bottom of said chamber from said column and exclusively controlling the rate at which refuse is fed to and through said chamber, said moving grate comprising an array of interleaved rotary-grate drums all rotated in the same sense, said drums being formed with axially offset star-shaped disks each provided with a plurality of angularly offset teeth, the teeth of one drum being received between the teeth of a pair of disks of an adjoining drum.
Claim 4
Dependent Claim
102 words
A refuse incinerator comprising housing means forming an incinerator chamber having a downwardly extending inlet column at one side thereof; and a moving grate extending along the bottom of said chamber from said column and exclusively controlling the rate at which refuse is fed to and through said chamber, said moving grate comprising an array of interleaved rotary-grate drums all rotated in the same sense, said drums being formed with axially offset star-shaped disks each provided with a plurality of angularly offset teeth, the teeth of one drum being received between the teeth of a pair of disks of an adjoining drum.
Claim 5
Dependent Claim
44 words
The refuse incinerator defined in claim 2 wherein said drums each include a hollow shaft carrying the respective disks, said disks being provided with apertures, said incinerator comprising means for distributing combustion air through said shaft to said disks for discharge through said apertures.
Claim 6
Dependent Claim
41 words
The refuse incinerator defined in claim 3 wherein each shaft and the respective disks are provided with generally radial partitions to confine the discharge of combustion air from said disks into said chamber to the upper portions only of each drum.
Claim 7
Dependent Claim
15 words
The refuse incinerator defined in claim 4 wherein said drums lie in a horizontal plane.
Claim 8
Dependent Claim
26 words
The refuse incinerator defined in claim 5, further Comprising an upwardly inclined conveyor leading to the top of said column for discharging refuse into the latter.
Claim 9
Dependent Claim
20 words
The refuse incinerator defined in claim 6, further comprising means at the upstream side of said array for collecting ash.
Claim 10
Dependent Claim
20 words
The refuse incinerator defined in claim 2 wherein said drums are driven at progressively higher speeds in the downstream direction.
Claim 11
Dependent Claim
38 words
The refuse incinerator defined in claim 2 wherein said array of drums includes an inlet drum beneath said column and operated at a speed controlling the rate at which the refuse is fed to and through said chamber.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |