Patent · US Active

Sandwich structure with frequency-selective double wall behavior

US7631727B2 · kind B2 · utility

8Cited by

16References

17Claims

0Family size

Assignee

AIRBUS DEUTSCHLAND GMBH · DE

Inventors

Christian Thomas · Walldorf, DE
Martin Wandel · Dormagen, DE

Key dates

Filing date	May 24, 2007
Grant date	Dec 15, 2009
Priority date	—
Expiry date	Sep 17, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249953
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A description is given of a sandwich structure which comprises a core and outer layers arranged on both sides of the core, in which the core has core clearances which are dimensioned such that the acoustic behavior of the sandwich structure in the region of the core clearances corresponds to the acoustic behavior of a double wall, and at the same time the global acoustic behavior of the sandwich structure is retained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.