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US Patent 10294815 SPF/DB structure for attenuation of noise from air flow

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Is a

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Max R. Runyan0

Jack W. Mauldin0

Larry D. Hefti0

Luis R. Leon0

Daniel G. Sanders0

David R. Papenfuss0

Date of Patent

May 21, 2019

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Patent Application Number

134100490

Date Filed

March 1, 2012

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Patent Citations Received

US Patent 11970992 Acoustic cores and tools and methods for forming the same

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US Patent 10783869 Cell structure for use in an acoustic panel, and methods of producing the same

US Patent 11059559 Acoustic liners with oblique cellular structures

Patent Primary Examiner

Kayla Mccaffrey

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Patent abstract

A propulsion system comprises a turbine engine, and an engine nacelle including an SPF/DB inner wall having a hot side face sheet against the engine and a cold side face sheet that has noise attenuation openings.

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