US4640682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse jet combustor dehydration cone construction
Assignee: Hosokawa Micron International Inc
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Filing: 1985-10-03
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Granted: 1987-02-03
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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 vibratable finger like sections at the downstream end thereof to minimize particle accumulationthereon.
Inventors
- 👤 Robert R. Gray
- 👤 Thomas G. Lindahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:08
CPC Classifications
F; F27; F27D; F27D99/00; F27D99/0001; F27D99/0033; F23; F23C; F23C15/00; F26; F26B; F26B17/00; F26B17/10; F26B23/00; F26B23/02; F26B23/026; F27D7/00; F27D7/04
Claims Analysis
Total Claims: 6
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 elongate transition-tailpipe section connected to said primary exhaust conduit, 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 material to be dried therein, the improvement wherein the downstream portion of said drying section includes a plurality of longitudinal slits extending through the terminal end thereof forming a plurality of individually vibratable finger-like sections integrally connected to the drying section at a location spaced a predetermined distance upstream of said terminal end thereof.
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 elongate transition-tailpipe section connected to said primary exhaust conduit, 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 material to be dried therein, the improvement wherein the downstream portion of said drying section includes a plurality of longitudinal slits extending through the terminal end thereof forming a plurality of individually vibratable finger-like sections integrally connected to the drying section at a location spaced a predetermined distance upstream of said terminal end thereof.
Claim 3
Dependent Claim
35 words
The improved pulse jet combustor apparatus as set forth in claim 1 wherein said drying section includes an upstream main body portion and a separable downstream continuation portion that includes said individually vibratable finger-like sections.
Claim 4
Dependent Claim
28 words
The improved pulse jet combustor apparatus as set forth in claim 1 wherein said drying section is formed of a mated pair of separable longitudinally split half sections.
Claim 5
Dependent Claim
63 words
The improved pulse jet combustor apparatus as set forth in claim 1 wherein said drying section includes an upstream main body portion formed of a mated pair of separable longitudinally split half sections and a separable dowstream continuation portion removably securable to the terminal end of said main body portion and having said individually vibratable finger-like sections disposed at the downstream end thereof.
Claim 6
Dependent Claim
31 words
The improved pulse jet combustor apparatus as set forth in claim 1 wherein said finger-like sections are of uniform width and length and extend around the periphery of said drying section.
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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |