Patent ID: 8279031
Filing Date: 2012-10-02
Classification: F16F,H01F

Abstract:
1. A multi-level magnetic system for isolation of vibration above a cutoff frequency, comprising: a first magnetic structure coupled to a first object at a first point; and a second magnetic structure coupled to a second object at a second point, wherein each one of said first magnetic structure and said second magnetic structure have a first portion comprising one or more first magnetic sources configured to produce an attractive force curve when said first and second magnetic structures are in a first relative alignment and each one of the first magnetic structure and the second magnetic structure have a second portion comprising one or more second magnetic sources configured to produce a repelling force curve when said first and second magnetic structures are in said first relative alignment, said attractive force curve and said repelling force curve causing a transition from a repel mode to an attract mode at an equilibrium separation distance between said first magnetic structure and said second magnetic structure where said attractive force equals said repelling force, at least one of said first magnetic structure or said second magnetic structure being configured to oscillate about said equilibrium separation distance in response to a vibration, said oscillation about said equilibrium being filtered to substantially attenuate vibrations above the cutoff frequency.