US4226584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary combustor wall
Assignee: O CONNOR ENGR LABS Inc
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Filing: 1979-04-02
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Granted: 1980-10-07
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Expires: 1999-04-02
Abstract
Abstract A rotary kiln or combustor having a plurality of water cooled pipes secured together to define a cylinder in which material is burned. The cylinder slowly rotates about its axis, and the pipes are secured together so as to define a plurality of intermediate openings making the cylinder gas porous and through which combustion air is introduced. The improvement comprises providing a plurality of pins, secured directly to the pipes on the inside of the cylinder, that create a pattern of projections to support burning material slightly spaced from the inner cylinder wall.
Inventors
- 👤 Tokihiko Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:08
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/08; F23G; F23G5/00; F23G5/20; F27; F27B; F27B7/00; F27B7/20; F27B7/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
In a combustor having a plurality of water cooled pipes secured together to define an inner generally cylindrical surface and mounted for rotation about the axis of said surface, said pipes being secured so as to define a plurality of intermediate openings so that said cylindrical surface is gas porous, the improvement comprising, means defining a plurality of projections on said cylindrical surface creating a pattern to support burning material slightly spaced from said surface, said pattern being substantially open in the curved plane just within said cylindrical surface, and said means comprising short pins secured directly and in heat transfer relationship on said pipes of said cylindrical surface.
Claim 2
Dependent Claim
109 words
In a combustor having a plurality of water cooled pipes secured together to define an inner generally cylindrical surface and mounted for rotation about the axis of said surface, said pipes being secured so as to define a plurality of intermediate openings so that said cylindrical surface is gas porous, the improvement comprising, means defining a plurality of projections on said cylindrical surface creating a pattern to support burning material slightly spaced from said surface, said pattern being substantially open in the curved plane just within said cylindrical surface, and said means comprising short pins secured directly and in heat transfer relationship on said pipes of said cylindrical surface.
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) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |