High-temperature, high-shear capillary viscometer

Details High-temperature, high-shear capillary viscometer High-temperature, high-shear capillary viscometer

1986-03-18

1987-04-21

Levy, Stewart J.

Measuring and testing

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

Viscosity

G01N 1106

Patent

active

046586369

ABSTRACT:
A high-temperature, high-shear viscometer includes a closed end tube having a chamber. A first inlet to the tube is for introducing pressurized gas therein. A second inlet to the tube is for introducing the liquid into the chamber and removing excess liquid from the chamber. A capillary tube is in communication with the chamber. An outlet for the liquid is in communication with the capillary tube. A timer is provided for measuring the efflux time of the liquid in the capillary tube. The timer is started by a device in communication with the first inlet. The timer is stopped by a device which senses the movement of the pressurized gas.

REFERENCES:
patent: 2700891 (1955-02-01), Shafer
patent: 2805570 (1957-09-01), Cannon
patent: 3277694 (1966-10-01), Cannon et al.
patent: 3435665 (1969-01-01), Tzentis
patent: 4274279 (1981-06-01), Meister
patent: 4441358 (1984-04-01), Osborne
ASTM Specification D446, "Glass Capillary Kinematic Viscometers" (1974).
ASTM Test Method, "Viscosity of Asphalts by Vacuum Capillary Viscometer" (1983).

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