Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1992-02-26
1993-07-06
Williams, Hezron E.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
G01N 1106
Patent
active
052243753
ABSTRACT:
An improved apparatus for automatically measuring the viscosity of a sample liquid is disclosed. The apparatus comprises a plurality of viscosimeter tubes mounted in a constant temperature bath, a plurality of vessels adapted for containing the sample liquid, a valve system for controlling the injection and the removal of the sample liquid into and from the viscosimeter tubes and the ascent and descent of the sample liquid in the viscosimeter tubes, a driving circuitry for the valve system, a photosensing device for sensing the meniscus of the liquid at predetermined indication marks of the viscosimeter tubes and a system of measuring the flow time of the sample liquid between two predetermined marks and computing the viscosity of the liquid based on the measured flow time.
REFERENCES:
patent: 3604247 (1971-09-01), Gramain
patent: 3895513 (1975-07-01), Richardson
patent: 4616503 (1986-10-01), Plungis et al.
patent: 5142899 (1992-09-01), Park et al.
Shvestka, M. Methods of Investigation Automatic Capillary Viscometer in Polymer Sci. (U.S.S.R.). vol. 16, No. 1 pp. 264-268, 1974.
Kilp, T., et al. Automatic Capillary Viscometer for the Study of Polymeric Reactions in Rev. of Sci. Instr. vol. 47, No. 12, pp. 1496-1502, Dec. 1976.
Kwon Young-Mann
Park Soo-Chang
You Dong-Yong
Dodd Thomas J.
Roskos Joseph W.
SKC Limited
Williams Hezron E.
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