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. 19, 1978
Filed:
Mar. 21, 1977
Applicant:
Inventor:
Horst W Hehmann, Cincinnati, OH (US);
Assignee:
General Electric Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G10K / ;
U.S. Cl.
CPC ...
181290 ; 181291 ;
Abstract
An acoustic suppression panel is provided with a perforated plate covering a layer of a bulk absorber. A flexible, fluid-impervious membrane is placed between the plate and the bulk absorber, and supported in a manner so as to permit the membrane to become essentially acoustically transparent. An acoustically hard backing plate is disposed adjacent the bulk absorber, the backing plate being provided with perforations to allow pressure equalization for flight applications. A facing sheet of sintered metal covers the perforated plate to provide an aerodynamically continuous flow surface for the plate which is highly resistant to foreign object impact.