Kinematic viscometer and method
US8661878B2 · kind B2 · utility
1Cited by
24References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2011 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Mar 12, 2032 |
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.