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:
Dec. 10, 2019
Filed:
Dec. 09, 2015
Bombardier Inc., Dorval, CA;
Raymond Lee Man Wong, Thornhill, CA;
BOMBARDIER INC., Dorval, CA;
Abstract
Sound absorbers and airframe components comprising such sound absorbers are disclosed. In one embodiment, an airframe component comprises an aerodynamic surface () and a sound absorber (). The sound absorber () comprises a perforated panel () having a front side exposed to an ambient environment outside of the airframe component and an opposite back side. The panel () comprises perforations extending through a thickness of the panel for permitting passage of sound waves therethrough. The sound absorber () also comprises a boundary surface spaced apart from the perforated panel. The boundary surface and the back side of the perforated panel () at least partially define a cavity in the airframe component for attenuating some of the sound waves entering the cavity via the perforations in the perforated panel ().