burner for a water heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 15, 2015
Grant Date -
Sep 26, 2013
app pub date -
Dec 1, 2010
filing date -
Dec 1, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of assembling multiple low NOx burners (100), a low NOx burners (100) and a tankless gas-fired water heater (500) are disclosed. The method includes the step of assembling multiple bodies (152), each body (152) includes multiple first burner ports (135) connected to a first burner inlet (125) and multiple second burner ports (150) connected to a second burner inlet (140). The method also includes the step of selecting one of the bodies (152) and inserting a first inlet tube (120, 220, 320, 420) into the second burner inlet (140) to provide a fuel/air mixture to the second burner ports (150) at a first rate. The method also includes the step of selecting one of the bodies (152) and inserting a second inlet tube (120, 220, 320, 420) into the second burner inlet (140) to provide the fuel/air mixture to the second burner ports (150) at a second rate different from the first rate.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
A O SMITH CORPORATION | 11270 WEST PARK PLACE MILWAUKEE WI 53224 |
International Classification(s)

- 2010 Application Filing Year
- F24H Class
- 171 Applications Filed
- 117 Patents Issued To-Date
- 68.43 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bi, Dayan | Nanjing, CN | 14 | 57 |
# of filed Patents : 14 Total Citations : 57 | |||
Chanasyk, Larry | Fergus, CA | 4 | 26 |
# of filed Patents : 4 Total Citations : 26 | |||
Cheng, Yonghua | Fergus, CA | 4 | 21 |
# of filed Patents : 4 Total Citations : 21 | |||
Dou, Liliang | Nanjing, CN | 3 | 14 |
# of filed Patents : 3 Total Citations : 14 | |||
Ma, Hongfei | Nanjing, CN | 6 | 27 |
# of filed Patents : 6 Total Citations : 27 |
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Patent Citation Ranking
- 1 Citation Count
- F24H Class
- 21.10 % this patent is cited more than
- 10 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 15, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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