Oxidation-stabilized hydrocarbon liquid bearings for lubricated disk drives
US5612838A · kind A · utility
13Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Oct 11, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/185
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In liquid disk drives, liquid bearing materials based on hydrocarbon liquids, halogenated liquids and mixtures thereof are used at the head-disk interface. Additives such as antioxidants and boundary layer lubricants may be incorporated to enhance oxidative stability and lubricity. The liquid bearing materials have relatively low viscosities and non-Newtonian flow characteristics so as to reduce drag at the read/write head compared with Newtonian liquid bearing materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.