Spindle motor magnet diameter increase above head plane
US9007716B1 · kind B1 · utility
0Cited by
321References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jul 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A spindle motor for a disk drive including a hub defining a longitudinal axis having a hub flange defining a mounting surface extending substantially normal to the longitudinal axis, wherein the hub flange of the hub extends longitudinally relative to the mounting surface to define a vertical surface; and a motor base coupled to the hub proximate to the hub flange of the hub, the motor base having a central axis substantially aligned with the longitudinal axis, wherein the motor base extends longitudinally, wherein a radius of the motor base is greater than a radius of the hub flange of the hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.