Suspension vibration damper with internal metal layer
AssigneeMagnecomp Corporation
InventorKeith A. Vanderlee
Life of this patent
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Abstract
A vibration damper for a disk drive suspension includes a viscoelastic damping layer, a substantially stiffer polymer constraining layer, and a metal layer interposed between the viscoelastic layer and the polymer constraining layer, such as a thin layer of aluminum vapor deposited onto the polymer constraining layer. The metal layer hides irregularities in the viscoelastic layer as that viscoelastic layer is adhered to the suspension without introducing potentially contaminating mineral particles into the polymer constraining layer.
Claims18
A vibration damper for a disk drive suspension, the vibration damper comprising:
- a transparent or translucent viscoelastic damping layer;
- a transparent or translucent constraining layer, the constraining layer being significantly stiffer than the damping layer;
- and
- an opaque layer interposed between the damping layer and the constraining layer, the opaque layer comprising a material that is different from the damping layer and the constraining layer.
A vibration damper for a disk drive suspension, the vibration damper comprising:
- a transparent or translucent damping layer;
- a transparent or translucent constraining layer, the constraining layer being significantly stiffer than the damping layer;
- and
- a metal layer interposed between the damping layer and the constraining layer.
Dependencies are inferred from the claim text.