Apparatus and method for measuring viscosity
Patent
·
OSTI ID:7001466
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. 7 figs.
- DOE Contract Number:
- AC04-77ET27144
- Assignee:
- NL Industries, Inc., New York, NY (United States)
- Patent Number(s):
- A; US 4571988
- Application Number:
- PPN: US 6-631237
- OSTI ID:
- 7001466
- Country of Publication:
- United States
- Language:
- English
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