The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2015
Filed:
Aug. 12, 2013
Applicant:
Hexcel Corporation, Dublin, CA (US);
Inventor:
Fumitaka Ichihashi, Chandler, AZ (US);
Assignee:
Hexcel Corporation, Dublin, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/84 (2006.01); F02C 7/045 (2006.01); F02K 1/82 (2006.01); F02C 7/24 (2006.01); G10K 11/172 (2006.01); B64D 33/02 (2006.01);
U.S. Cl.
CPC ...
E04B 1/84 (2013.01); F02C 7/045 (2013.01); F02K 1/827 (2013.01); F02C 7/24 (2013.01); G10K 11/172 (2013.01); B64D 2033/0206 (2013.01); F05D 2250/232 (2013.01); F05D 2250/283 (2013.01);
Abstract
A multi-sectional acoustic septum that includes sections which have different acoustic resistance properties. The multi-sectional acoustic septums extend vertically with the acoustic cell and are capable of increasing the effective acoustical length of the acoustic cell. The multiple acoustic properties provided by the multiple acoustic sections also make it possible to target specific frequency ranges within the overall frequency range of the acoustic cell.