US Patent No: 8,087,898
Number of patents in Portfolio can not be more than 2000
Stress relief flange and method for distributing stress for wind turbine components
Stats
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Jan 3, 2012
Issued date -
Dec 15, 2009
filing date -
12/637,950
serial no -
In Force
status
Importance
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Abstract
A wind turbine including an article, article, and method of forming an article for distributing stress are disclosed. The article includes a flange for securing an upper tower section and a lower tower section of a wind turbine and includes a first arm extending in a first direction, a second arm extending in a second direction substantially perpendicular to the first direction, a relief region disposed between the first arm and the second arm, the relief region maintaining or improving the distribution of stress on wind turbine components selected from the group consisting of the first arm of the flange, the second arm of the flange, a fastener of the flange, and combinations thereof.
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First Claim
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,467,988 Reducing cracking adjacent shell flange connecting bolts | 20 | 2000 | |
| 2009/0169,393 WIND TOWER AND METHOD OF ASSEMBLING THE SAME | 2 | 2007 | |
| 2010/0024,311 WIND TURBINE ASSEMBLY WITH TOWER MOUNT | 4 | 2008 | |
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| 2003/0147,753 Wind turbine tower suspension means | 10 | 2002 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jul 3, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 3, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 3, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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