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:
Apr. 18, 2017
Filed:
Mar. 12, 2012
Michael G. Jones, Newport News, VA (US);
Russell H. Thomas, Yorktown, VA (US);
Douglas M. Nark, Norfolk, VA (US);
Brian M. Howerton, Newport News, VA (US);
Michael J. Czech, Issaquah, WA (US);
Michael G. Jones, Newport News, VA (US);
Russell H. Thomas, Yorktown, VA (US);
Douglas M. Nark, Norfolk, VA (US);
Brian M. Howerton, Newport News, VA (US);
Michael J. Czech, Issaquah, WA (US);
Abstract
Acoustic liners for aircraft noise reduction include one or more chambers that are configured to provide a pressure-release surface such that the engine noise generation process is inhibited and/or absorb sound by converting the sound into heat energy. The size and shape of the chambers can be selected to inhibit the noise generation process and/or absorb sound at selected frequencies.