Apparatus for measuring viscosity of liquids
US3935726A · kind A · utility
Inventor
Key dates
| Filing date | Jun 17, 1974 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | Jun 17, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N11/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved apparatus is provided for measuring the viscosity of a liquid comprising a rotatable container means; means for rotating said container means at a desired speed; a freely rotatable member within said container means, said container means and said member defining a volume therebetween for receiving liquid to be measured; a third bath surrounding said container means for maintaining said container means at a desired constant temperature; means for measuring torque of said member when said volume is charged with liquid to be measured and said container means is rotated by said rotating means; and a bearing made from a material having a high thermal conductivity and located between and contacting said container means and said fluid bath to facilitate relative rotation therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.