Apparatus and method for measuring viscosity
US7237431B2 · kind B2 · utility
1Cited by
18References
43Claims
0Family size
Assignee
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Key dates
| Filing date | May 10, 2005 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Aug 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2011/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and methods for analysis of a petroleum product, specifically determining the viscosity of a sample, are disclose. The apparatus includes a sample reservoir for receiving a liquid sample and a pressure regulator for applying hyperbaric pressure to a sample within the reservoir. When pressure is applied to the sample reservoir, the sample is forced through a passageway and a pressure sensor monitors the pressure in the sample reservoir. A drop in the pressure can be used to determine when the reservoir is empty and sample viscosity can be calculated based on the time required to empty the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.