Viscosity testing apparatus

Details Viscosity testing apparatus Viscosity testing apparatus

1989-08-31

1990-07-24

Williams, Hezron E.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1106

Patent

active

049427598

ABSTRACT:
A viscosity test apparatus is disclosed including a reference chamber that is partially filled by a predetermined volume of reference liquid having a known viscosity. There is a test chamber attached to the reference chamber which is partially filled with a test liquid having a volume and viscosity/temperature characteristic that are substantially similar to those of the reference liquid. An elongate first conducting column mounted within the reference chamber includes an open upper end that interconnects the reference chamber and the first column and a lower end having a first orifice that is submersible in the reference liquid for conducting the reference liquid under a pressure head between the first column and the reference chamber. A second column is mounted within the test chamber in substantial alignment with, and having dimensions substantially identical to the first column. The second column includes an open upper end and a lower end having a second orifice that is submersible in the test liquid for conducting the test liquid under a pressure head between the second column and the test chamber. The reference and test chambers are simultaneously manipulable to provide the liquids with respective pressure heads for driving the reference and test liquids respectively through the first and second orifices such that the levels of the reference liquid and the test liquid in the first and second column may be compared instantaneously to provide a measure of viscosity of the test liquid.

REFERENCES:
patent: 1635281 (1927-07-01), Larson
patent: 1659534 (1928-02-01), Mason
patent: 1758677 (1930-05-01), Smith
patent: 2419658 (1947-04-01), Rogers
patent: 2625817 (1953-01-01), Oppenauer
patent: 4221073 (1980-09-01), Malczewski
patent: 4794787 (1989-01-01), Gordon

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