Color coded glass disc spacer
US9466327B1 · kind B1 · utility
2Cited by
14References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2015 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Sep 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0287
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for supporting a data recording medium adjacent a spindle motor hub. In some embodiments, an annular disc spacer has a plurality of nominal dimensions and is formed of a glass material and at least one additive to provide the disc spacer with a selected color. The color of the disc spacer is selected responsive to at least one of the plurality of nominal dimension of the disc spacer. The color may have a wavelength in the human detectable range of from about 350 nanometers, nm to about 700 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.