Surface friction testing apparatus
US7600411B2 · kind B2 · utility
3Cited by
25References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Jun 8, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N19/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Surface testing friction apparatus comprises a trolley and an inclined ramp. The trolley and ramp are arranged such that a slider on the trolley comes into contact with the surface during a test run over a surface, the friction coefficient of which is to be determined, the mass of the trolley length and a height of the ramp are selected such that for a slider of given properties, materials and dimensions the critical film thickness for a wet surface is approximately 2 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.