US3823677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravity flow incinerator
Assignee: Combustion Engineering Inc
•
Filing: 1972-12-15
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Granted: 1974-07-16
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Expires: 1992-12-15
Abstract
Abstract A gravity flow incinerator for burning refuse, trash, and industrial wastes, etc. including an upright vertical chamber having grates vertically spaced throughout the height of the unit. Each grate is inclined downwardly and inwardly towards a central opening. Air is fed to each of the openings through the grate itself. The central openings in the grates are progressively smaller from the uppermost grate to the lowermost grate. The residue leaving the vertical incinerator is fed to a rotary incinerator where combustion is completed.
Inventors
- 👤 E Polsak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:12
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/16; F23G2209/00; F23G2209/22; F23G2209/26; F23G2209/261; F23G2209/28; F23G2900/00; F23G2900/52001; F23G2900/53801
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
158 words
In combination a vertical incinerator for burning refuse including vertical wall means forming an upright chamber, a plurality of vertically spaced grates positioned within the chamber, each grate having an inclined upper surface which extends downwardly from its outer edge, the entire outer periphery thereof being secured to the vertical wall means around its entire periphery, each grate having a central opening therein, the openings of the grates being progressively smaller from the uppermost grate to the lowermost grate, the openings in all of the grates being sufficiently small so that some refuse becomes wedged within the opening of each grate, and is supported by the grate until sufficient combustion takes place to reduce the refuse particle size sufficiently to allow it to drop onto the next lower grate, each of the grates being spaced vertically an amount which allows tumbling and agitation of the refuse as it falls to a lower grate, thereby increasing the combustion efficiency.
Claim 2
Dependent Claim
158 words
In combination a vertical incinerator for burning refuse including vertical wall means forming an upright chamber, a plurality of vertically spaced grates positioned within the chamber, each grate having an inclined upper surface which extends downwardly from its outer edge, the entire outer periphery thereof being secured to the vertical wall means around its entire periphery, each grate having a central opening therein, the openings of the grates being progressively smaller from the uppermost grate to the lowermost grate, the openings in all of the grates being sufficiently small so that some refuse becomes wedged within the opening of each grate, and is supported by the grate until sufficient combustion takes place to reduce the refuse particle size sufficiently to allow it to drop onto the next lower grate, each of the grates being spaced vertically an amount which allows tumbling and agitation of the refuse as it falls to a lower grate, thereby increasing the combustion efficiency.
Claim 3
Dependent Claim
43 words
The combination set forth in claim 1, including a plurality of radial passageways in each grate, an air supply source, each passageway having an inlet end connected to the air supply source and an outlet connected to the central opening in the grate.
Claim 4
Dependent Claim
27 words
The combination set forth in claim 1, including a rotary incinerator, and conveying means extending from beneath the opening of the lowermost grate to the rotary incinerator.
Claim 5
Dependent Claim
55 words
The combination set forth in claim 3 wherein the rotary incinerator has an exhaust duct, and the vertical incinerator has an exhaust duct, the exhaust duct of the vertical incinerator having an inlet end connected to the upper portion of the upright chamber, and an outlet connected to the exhaust duct of the rotary incinerator.
References Cited (Backward Citations)
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |