Noise attenuation panel
AssigneeShort Brothers PLC
InventorRobert S. Wilson
Life of this patent
Estimating the term…
Abstract
A noise attenuation panel having a backing sheet, a facing sheet and a cellular core having a multiplicity of open-ended juxtaposed cells. The backing sheet extends across the ends of the cells at the rear of the core and the facing sheet extends across the ends of the cells at the front of the core. The facing sheet is made of a porous permeable thermoplastics material. The porous permeable thermoplastics material for the facing sheet is produced by powder sintering a thermoplastics material.
Claims15
A noise attenuation panel comprising a backing component part, a facing component part and a cellular component part having a multiplicity of open-ended juxtaposed cells, the backing component part extending across the ends of the cells of the cellular component part at the rear thereof and the facing component part extending across the ends of the cells of the cellular component part at the front thereof, wherein the facing component part comprises an outer facing sheet of a porous permeable powder sintered thermoplastics material.
A noise attenuation panel comprising a backing component part, a facing component part and a cellular component part having a multiplicity of open-ended juxtaposed cells, the backing component part extending across the ends of the cells of the cellular component part at the rear thereof and the facing component part extending across the ends of the cells of the cellular component part at the front thereof, wherein the facing component part comprises an outer facing sheet of a porous permeable thermoplastics material produced by powder sintering said thermoplastic material.
A noise attenuation panel comprising a backing component part, a facing component part and a cellular component part having a multiplicity of open-ended juxtaposed cells, the backing component part extending across the ends of the cells of the cellular component part at the rear thereof and the facing component part extending across the ends of the cells of the cellular component part at the front thereof, wherein the facing component part comprises a porous permeable powder sintered thermoplastics outer facing sheet.
A noise attenuation panel comprising a backing component part, a facing component part and a cellular component part having a multiplicity of open-ended juxtaposed cells, the backing component part extending across the ends of the cells of the cellular component part at the rear thereof and the facing component part extending across the ends of the cells of the cellular component part at the front thereof, wherein the facing component part comprises a porous permeable outer facing sheet in the form of a body of powder sintered thermoplastics material, the degree of powder sintering being such as to make the outer facing sheet porous and permeable.
Dependencies are inferred from the claim text.