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US 7,120,263 B2Granted
Bending wave acoustic radiator
AssigneeNew Transducers Limited
InventorsHenry Azima, Martin Colloms, Graham Bank, Charles Bream, Julian Fordham
Life of this patent
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AssigneeNew Transducers Limited
InventorsHenry Azima, Martin Colloms, Graham Bank, Charles Bream, Julian Fordham
Estimating the term…
A bending wave panel-form acoustic radiator formed from sheet material to define an acoustically active area and having at least one integral stiffening member in the form of a corrugation extending out of the plane of the sheet and at least partially across the acoustically active area of the radiator, which stiffening member is of substantially U-shaped cross section. Also disclosed is a method of making a bending wave panel-form acoustic radiator, comprising forming a sheet into a panel having at least one integral corrugation member extending out of the plane of the sheet and at least partly across the sheet and of substantially U-shape cross-section, to stiffen the sheet to have a desired ability to support and propagate bending waves.
A loudspeaker comprising a bending wave panel-form acoustic radiator and a vibration transducer coupled to the radiator, wherein the radiator is formed from material in the form of a sheet to define an acoustically active radiator area and has at least one integral stiffening member in the form of a corrugation extending out of the plane of the sheet and at least partially across the acoustically active area of the radiator so as to be exposed on at least one face of the radiator, which stiffening member is of substantially U-shaped cross section, the transducer being coupled to the acoustically active area of the radiator.
Dependencies are inferred from the claim text.