US Patent 11761512 Biaxial vibration isolation and damping in a concentric plural-cylinder system

An exemplary inventive device is placed between inner and outer concentric cylindrical structures. The inventive device includes at least three coaxial rectangular-toroidal elements adhered together, viz., at least one smaller stiff element, at least one larger stiff element, and at least one resilient element. The elements are arranged so that each resilient element is adjacently positioned between a smaller stiff element and a larger stiff element. The inner circumferential surface of the smaller stiff element contacts the outer circumferential surface of the inner cylindrical structure. The outer circumferential surface of the larger stiff element contacts the inner circumferential surface of the outer cylindrical structure. The inner and outer circumferential surfaces of the resilient element are distanced, respectively, from the inner cylindrical structure's outer circumferential surface and the outer cylindrical structure's inner circumferential surface. Mechanically induced deformations of the resilient elements permit longitudinal displacement and result in vibration isolation/damping in biaxial radial directions.