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:
Aug. 22, 1989
Filed:
Apr. 04, 1988
Applicant:
Inventors:
Pascal J Autie, Paris, FR;
Philippe P Avignon, Combs-la-Ville, FR;
Dominique P Camusso, Evry, FR;
Alexandre Forestier, Melun, FR;
Gilles Ulryck, Ballancourt, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B64D / ; E04B / ;
U.S. Cl.
CPC ...
181213 ; 181214 ; 181224 ; 181286 ;
Abstract
A sound insulating lining for a gas flow path, particularly the bypass flow ath in a jet engine, is made up of a succession of acoustic panels including a perforated skin bonded to a stiffening frame, and a cellular structure formed by a ribbed skin clamped with prestressing via of resilient tongues to transverse struts of the stiffening frame so that the ribs engage the perforated skin to form resonant acoustic cavities. The panels forming the lining are screwed to the casing constituting the wall of the flow path to be insulated.