Kinematic viscometer and method
US9234829B2 · kind B2 · utility
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25References
13Claims
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Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A viscometer assembly includes a first plate with a rail configured to constrain fluid thereon between its edges by surface tension. A second opposing plate has a surface spaced from the rail by a predefined gap of constraining fluid to the rail by surface tension when the rail is inclined and gravity pulls the fluid along the rail. The kinematic viscosity of the fluid is determined as a function of the predetermined gap and the time it takes the fluid to flow along the rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.