Disk drive with stepped motor hub
US8416522B1 · kind B1 · utility
50Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2008 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Mar 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive motor hub includes a top cylindrical portion defining a longitudinal axis, a middle cylindrical portion proximate the top cylindrical portion, and a bottom cylindrical portion proximate the middle cylindrical portion. The middle cylindrical portion defines an upper mounting surface substantially normal to the longitudinal axis, the upper mounting surface extending radially beyond the top cylindrical portion, and the bottom cylindrical portion defines a lower mounting surface substantially normal to the longitudinal axis, the lower mounting surface extending radially beyond the middle cylindrical portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.