Apparatus and method for measuring viscosity
US4571988A · kind A · utility
18Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1984 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Jul 16, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to an apparatus and method for measuring the viscosity of a fluid. This apparatus and method is particularly useful for the measurement of the viscosity of a liquid in a harsh environment characterized by high temperature and the presence of corrosive or deleterious gases and vapors which adversely affect conventional ball or roller bearings. The apparatus and method of the present invention employ one or more flexural or torsional bearings to suspend a bob capable of limited angular motion within a rotatable sleeve suspended from a stationary frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.