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:
Mar. 30, 2021
Filed:
Mar. 10, 2015
Mra Systems, Llc, Baltimore, MD (US);
Graham Frank Howarth, Middletown, DE (US);
Andrew Michael Roach, Aberdeen, MD (US);
Steven Thomas Davies, Bel Air, MD (US);
Richard David Cedar, Montgomery, OH (US);
Michael Moses Martinez, Liberty Township, OH (US);
Timothy Richard DePuy, Liberty Township, OH (US);
MRA SYSTEMS, LLC, Baltimore, MD (US);
Abstract
An acoustic liner for a turbine engine, the acoustic liner includes a support layer that includes a set of partitioned cavities with open faces, a facing sheet operably coupled to the support layer such that the facing sheet overlies and closes the open faces, a set of perforations located in the facing sheet and in fluid communication with a corresponding one of the cavities to form a set of acoustic resonators, and at least a subset of the perforations have an axially-oriented, relative to the axial flow path, inlet.