Method and apparatus for determining permeability of filter medi

Details Method and apparatus for determining permeability of filter medi Method and apparatus for determining permeability of filter medi

1978-09-22

1978-12-05

Swisher, S. Clement

Measuring and testing

With fluid pressure

Porosity or permeability

G01N 1508

Patent

active

041280040

ABSTRACT:
In the measurement of the permeability of a filter medium a cake of the medium is formed in a holder by supplying an excess of the medium, as a suspension under pressure, to the holder, the pressure being relieved and the excess portion being removed to leave an undried cake of medium when the excess portion has dried to a given level as sensed by a pair of electrodes. Two further electrodes are used to determine the time for a given volume of liquid to pass through the cake for measuring its permeability.

REFERENCES:
patent: 2392637 (1946-01-01), Boehler
patent: 2401122 (1946-05-01), Thoresen et al.
patent: 2745057 (1956-05-01), Dotson

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