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:
May. 23, 2006
Filed:
May. 28, 2003
Jeffrey W. Moe, Chula Vista, CA (US);
Stuart J. Byrne, San Diego, CA (US);
Norman J. James, San Diego, CA (US);
Ricardo A. Burdisso, Blacksburg, VA (US);
Jeffrey W. Moe, Chula Vista, CA (US);
Stuart J. Byrne, San Diego, CA (US);
Norman J. James, San Diego, CA (US);
Ricardo A. Burdisso, Blacksburg, VA (US);
Rohr, Inc., Chula Vista, CA (US);
Abstract
An assembly useful in reducing aircraft engine noise such as turbofan engine noise comprises: (a) a core portion comprising at least one entrance end and at least one exit end for the passage of acoustic energy therethrough; (b) a first member having an exterior face and an interior face, wherein the first member is adjacent to at least a part of the core portion, and the first member has a plurality of openings therein to permit the passage of acoustic energy therethrough; and (c) a second member having an exterior face and an interior face, wherein the interior face of the second member is adjacent to the core portion. The core portion may be a honeycomb acoustic structure, and the first member may be perforated to permit the passage of acoustic energy into and out of the conduit portion.