US4624635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction for pulse jet combustor dehydration section
Assignee: Hosokawa Micron International Inc
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Filing: 1985-10-03
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Granted: 1986-11-25
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Expires: 2005-10-03
Abstract
Abstract Improved dehydration section construction for pulse jet combustion apparatus for the drying of particulate materials that includes a plurality of exhaust flow disturbing rings on the confining walls thereof.
Inventors
- 👤 Robert R. Gray
- 👤 Thomas G. Lindahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:31
CPC Classifications
F; F27; F27B; F27B15/00; F26; F26B; F26B17/00; F26B17/10; F26B23/00; F26B23/02; F26B23/026
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
In pulse jet combustor apparatus for the drying of particulate material of the type having a combustion chamber, an air inlet conduit connected to one end thereof, a primary exhaust gas outlet conduit connected to the other end thereof, an elongated transition-tailpipe section connected to said primary exhaust conduits and a frusto-conically shaped drying section of increasing diameter connected to the downstream end of said transition-tailpipe section having means for introducing particulate materials to be dried therein, the improvement wherein said drying cone includes a plurality of longitudinally spaced diminutive concentric rings mounted on the inner surface thereof to sequentially create selectively located perimetric turbulence in the portions of primary exhaust gas stream disposed adjacent said inner surface of said drying cone as it flows therepast.
Claim 2
Dependent Claim
126 words
In pulse jet combustor apparatus for the drying of particulate material of the type having a combustion chamber, an air inlet conduit connected to one end thereof, a primary exhaust gas outlet conduit connected to the other end thereof, an elongated transition-tailpipe section connected to said primary exhaust conduits and a frusto-conically shaped drying section of increasing diameter connected to the downstream end of said transition-tailpipe section having means for introducing particulate materials to be dried therein, the improvement wherein said drying cone includes a plurality of longitudinally spaced diminutive concentric rings mounted on the inner surface thereof to sequentially create selectively located perimetric turbulence in the portions of primary exhaust gas stream disposed adjacent said inner surface of said drying cone as it flows therepast.
Claim 3
Dependent Claim
27 words
The improved pulse jet combustor apparatus as set forth in claim 1 wherein said drying cone is formed of a mated pair of separable longitudinally-split half sections.
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) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |