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1. (WO2019027943) ELASTIC MATERIAL FOR COUPLING TIME-VARYING VIBRO-ACOUSTIC FIELDS PROPAGATING THROUGH A MEDIUM
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CLAIMS What is claimed as desired to be protected by Letters of the United for use a medium comprising a the device an elastic a plurality of unit said plurality of unit cells comprising a first unit said unit cell a first joint comprising a first joint wall defining a first join central a first joint inclusion located n the first joint central void and at least first arms connected to away from said first wherein said elastic material comprises an said impedance the medium impedance being sufficiently t propagating acoustic fields between said material and the The device according to wherein the medium comprises one of water and The device according to claim wherein first join wall comprises at least one of a first a first metal first a first a first a a first and a wherein said first joint inclusion at least one of a second a second a metal a a second a a second a second elastic a and a first wherein said at least two first arms comprise at one of a third third third a a third third a third a third elastic and a third The device according to at least one of first said second said third semiconductor comprises one of silicon gallium wherein at least one of said second and said third metal comprises one of and wherei at least one of said first metal second metal and said third metal alloy comprises one of a alloy and wherein at least one of said first said second and said third comprises one of polydm and aery butadiene wherein at least one of said first said second and said third ceramic comprises o f alumina lead zircon ale wherein at least one of said first said second and said third foam comprises one of aluminum foam and polystyrene wherein one of first said second and third comprises one of hydrogel and wherein at least one of said first said second and said third rubber comprise one of butyl rubber and wherein at least one of said first elastic composi second elastic said third elastic comprises one of carbon composite and particle wherein said aid comprises of one of water and The device according to 1 said elastic comprises one of at least one disordered heterogeneous geometry at least one lattice The device according to claim wherein said at least one lattice geometry comprises one of a lattice geometry a chiral Iattice The device according to claim wherei said elastic comprising said chiral lattice geometr comprises a first wherein said elastic material comprising said iattice geometry comprises at least of material a second The device according claim wherein said iattice geometry comprises one of Iattice geometr and an lattice wherein chiral lattice geometry comprises of a lattice geometry a tetrachiral lattice The device according to claim wherein said at least one disordered heterogeneous geometry comprises plurality of wherein said at least one lattice geometry comprises a plurality The device according to claim said elastic comprises a plurality of joining regions interconnecting said at least one of a plurality of geometries a plurality of lattice The device according to claim wherein said plurality of joining regions comprises of at least two same joining region at least two different joining region and said plurality of joining regions being free of said at least same joining region inclusions said at least two different joining region The device according to claim wherein plurality of unit cells comprises a second unit said second un cell a second joint comprising a second joint wall definin a second joint central second joint located in the second joint central and at least two second am s connected to extending from second cell wherein said first cell and said second cell define at least one gap and comprise one of a gap material a vacuum in the at least one The device according to claim wherein gap material at least one of a gap fluid and elastic gap wherein said gap fluid comprises one of and wherein said elastic gap solid comprises a gap solid bulk a gap solid shear modulus of and a gap solid density sufficient for at least partial propagation of acoustic waves said first The device according to claim wherein said first comprises a plurality of tangent least one of said at least two first extending away a tangent point of said plurality of tangent and connecting said second The device according to claim wherein said comprises a plurality of tangent at least one first arm of said at least two first arms extending away offset from a point of said plurality of tangent points and to said second joint The device according to claim a aperture said elastic ϊ The device according to claim said aperture comprises one of an snperlens and an The device according a lattice comprising said elastic The device according to ί said laiiice comprises one of a ice and a plurality of stacked The device according to claim wherein at least one of said first said second said third ceramic comprises a piezoelectric wherein least one of sai d first said second composi and said third composite comprises one of a insufficientOCRQuality