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:
Sep. 08, 2015
Filed:
Apr. 11, 2014
Applicant:
Rohr, Inc., Chula Vista, CA (US);
Inventors:
Ian F. Winfield, San Diego, CA (US);
Robert L. Braden, San Diego, CA (US);
Assignee:
ROHR, INC., Chula Vista, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/86 (2006.01); B32B 3/12 (2006.01); F02C 7/045 (2006.01); E04B 1/74 (2006.01);
U.S. Cl.
CPC ...
E04B 1/86 (2013.01); B32B 3/12 (2013.01); F02C 7/045 (2013.01); E04B 2001/748 (2013.01); F05D 2250/283 (2013.01);
Abstract
A passive noise attenuation system is described herein. The passive noise attenuation system may comprise an acoustic structure. The acoustic structure may comprise a perforated top sheet and a core accessible via the perforated top sheet. The core may comprise a cell having a plurality of interior walls. The acoustic structure may comprise a back skin. The acoustic structure may comprise an inherently porous material disposed between the top sheet and the back skin, wherein the porous material forms a plane or multiple planes coupled to each interior wall to tangentially subdivide the core.