Patent AT-E400978-T1: [Translated] DEVICE FOR ELECTROACOUSTIC RADIATION WITH MEMBRANES, CENTERING MEMBRANES AND HORNES MADE OF BALSA WOOD OR A MIXTURE THEREOF
PCT No. PCT/IT96/00117 Sec. 371 Date Nov. 21, 1997 Sec. 102(e) Date Nov. 21, 1997 PCT Filed Jun. 10, 1996 PCT Pub. No. WO97/37513 PCT Pub. Date Oct. 9, 1997A device for electroacoustic diffusion includes a basket; a balance supported by the basket, made of balsa wood or formed with a balsa wood stripe fixed at its ends with a coil glued at its middle; a balsa wood membrane supported by the basket; a suspension adjacent to the membrane and supported by the basket; and an electroacoustic structure adjacent the basket and opposite the balance. The electroacoustic structure includes a first plate adjacent the basket, a second plate, a magnet between the first plate and the second plate, and a coil between the first plate and the second plate. The membrane can take on various shapes, including: (a) a truncated-cone shape, including triangular pieces of balsa wood, steam folded, glued, and placed with fibers of the balsa wood in a radial orientation, (b) a dome-shape, and (c) a planar shape.
Complete Metadata
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| description | PCT No. PCT/IT96/00117 Sec. 371 Date Nov. 21, 1997 Sec. 102(e) Date Nov. 21, 1997 PCT Filed Jun. 10, 1996 PCT Pub. No. WO97/37513 PCT Pub. Date Oct. 9, 1997A device for electroacoustic diffusion includes a basket; a balance supported by the basket, made of balsa wood or formed with a balsa wood stripe fixed at its ends with a coil glued at its middle; a balsa wood membrane supported by the basket; a suspension adjacent to the membrane and supported by the basket; and an electroacoustic structure adjacent the basket and opposite the balance. The electroacoustic structure includes a first plate adjacent the basket, a second plate, a magnet between the first plate and the second plate, and a coil between the first plate and the second plate. The membrane can take on various shapes, including: (a) a truncated-cone shape, including triangular pieces of balsa wood, steam folded, glued, and placed with fibers of the balsa wood in a radial orientation, (b) a dome-shape, and (c) a planar shape. |
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| title | Patent AT-E400978-T1: [Translated] DEVICE FOR ELECTROACOUSTIC RADIATION WITH MEMBRANES, CENTERING MEMBRANES AND HORNES MADE OF BALSA WOOD OR A MIXTURE THEREOF |
