Device for reducing frictional resistance, ship comprising the device, and method of reducing frictional resistance of ship
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United States of America Patent
Stats
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Aug 22, 2017
Grant Date -
Jun 30, 2016
app pub date -
Oct 17, 2014
filing date -
Oct 23, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device for reducing frictional resistance includes: a chamber which is provided to a draft part of a hull and in which blowing holes blowing out air into the water of the outside of the hull from different positions to each other in a height direction of the hull are formed; a supply pipe supplying the air to an internal space of the chamber; and a distributor provided to each of the blowing holes, and guiding a part of the air, which was supplied inside the chamber from the supply pipe, to each of the blowing holes. The plurality of distributors has a flow-amount adjuster adjusting a flow amount of the air guided to the blowing hole corresponding to each of the distributors so that the flow amount of the air blown out from the plurality of blowing holes is equalized in each of the blowing holes.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP6037999 | Oct 23, 2013 |
| KR | B1 | KR101647273 | Oct 17, 2014 |
| WO | A1 | WO2015060217 | Oct 17, 2014 |
| EP | B1 | EP2886437 | Oct 17, 2014 |
International Classification(s)
- 2014 Application Filing Year
- B63B Class
- 679 Applications Filed
- 600 Patents Issued To-Date
- 88.37 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B63B Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 22, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 22, 2029 |
