Ruggedized host module
US7251131B2 · kind B2 · utility
45Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2006 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Mar 13, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An energy dissipative element (24) protects hard disk drives (22, 72, 92) from shocks and vibrations. A closed elastic envelope (48) houses a body of open cell foam (54), a volume of viscous liquid (56), and a compressible gas (64). Under compression or expansion of the foam (54), viscous liquid (56) flows through cell orifices and thereby dissipates energy resulting from external force applied against the elastic wall (48). The energy dissipative elements (24) are applied between a disk drive housing (22) and an outer case (26) to create a ruggedized portable disk drive module (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.