Method and arrangement for supplying air to recovery boiler
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 28, 1999
Grant Date -
N/A
app pub date -
Feb 3, 1998
filing date -
Feb 7, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and an arrangement for supplying air to a recovery boiler. In the method, the air is supplied to the recovery boiler at at least one air supply level so that four vortices are formed therein, the vortices spinning, in pairs, in opposite directions to one another so that any two adjacent vortices always spin in opposite directions to one another. The arrangement comprises nozzles that are arranged to blow air so that four vortices are formed in the recovery boiler, any two adjacent vortices always spinning in opposite directions to one another.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- KVAERNER POWER OY
International Classification(s)

- 1998 Application Filing Year
- F23G Class
- 37 Applications Filed
- 12 Patents Issued To-Date
- 32.44 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Janka, Kauko | Tampere, FI | 19 | 101 |
# of filed Patents : 19 Total Citations : 101 | |||
Ruohola, Tuomo | Tampere, FI | 8 | 48 |
# of filed Patents : 8 Total Citations : 48 | |||
Ylitalo, Matti | Tampere, FI | 8 | 17 |
# of filed Patents : 8 Total Citations : 17 |
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Patent Citation Ranking
- 4 Citation Count
- F23G Class
- 1.92 % this patent is cited more than
- 26 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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