Disk drive suspension having dual vibration damper
US9368129B1 · kind B1 · utility
3Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Jul 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vibration damper for a suspension has two different viscoelastic layers and two different constraint layers. The two viscoelastic layers can be tailored to have different properties, including different viscosities and/or peak vibration frequency damping at different frequencies. The vibration damper exhibits improved vibration damping as compared to a single layer damper having the same overall thickness at critical frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.