Sound attenuation apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 26, 2017
Grant Date -
Jan 26, 2017
app pub date -
Jul 21, 2015
filing date -
Jul 21, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An aircraft engine sound attenuation apparatus includes a perforated face member, a backing member, a plurality of connecting members coupling the perforated face member to the backing member to form a plurality of channels spanning from the perforated face member to the backing member, and a bulk absorber disposed in each of the plurality of channels, wherein the plurality of channels are connected to an interior portion of an aircraft engine nacelle component so that the plurality of channels are oriented in a direction substantially normal to a direction of fluid flow pressure drop passing through the aircraft engine.
First Claim
Other Claims data not available
Family
- No Family data available.
International Classification(s)
- 2015 Application Filing Year
- F02K Class
- 482 Applications Filed
- 379 Patents Issued To-Date
- 78.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F02K Class
- 21.78 % 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 | Mar 26, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 26, 2029 |
