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Bellows with spring anti-gravity device

  • US 20060060791A1
  • Filed: 09/08/2004
  • Published: 03/23/2006
  • Est. Priority Date: 09/08/2004
  • Status: Active Grant
First Claim
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1. An apparatus for supporting a second mass with respect to a first mass, the apparatus comprising:

  • a vibration attenuation device including at least one bellows oriented along a support axis, the at least one bellows connected between the first mass and the second mass and having an interior volume pressurized with a fluid to an internal fluid pressure which is greater than a zero-stiffness pressure such that the vibration attenuation device exhibits a negative lateral stiffness; and

    a positive stiffness device coupled between the first mass and the second mass, the positive stiffness device having a positive lateral stiffness.

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