Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Erosion
Patent
1978-03-22
1980-12-02
Rolinec, Rudolph V.
Electricity: measuring and testing
Determining nonelectric properties by measuring electric...
Erosion
73432PS, G01N 2700
Patent
active
042374162
ABSTRACT:
An apparatus for counting and sizing particles suspended in a liquid electrolyte, having first and second vessels for first liquid electrolyte having particles to be counted and sized suspended therein; and for particle-free second liquid electrolyte, respectively; first and second electrodes immersed in the first and second liquid electrolytes, respectively; an orifice having upstream and downstream sides and constituting a first particle-observing location in fluid flow connection on its upstream side with the first vessel and sized to allow one particle at a time to pass therethrough; and a fluid flow passage connecting with the downstream side of the orifice for carrying liquid electrolyte and particles away from the orifice to a second particle-observing location; and sized to carry the particles in the same sequence of flow as that in which they pass through the orifice to facilitate observation in that order at the second particle-observing location.
REFERENCES:
patent: 3361965 (1968-02-01), Coulter et al.
patent: 3746976 (1973-07-01), Hogg
patent: 3793587 (1974-02-01), Thom et al.
patent: 4001678 (1977-01-01), Berg
patent: 4014611 (1977-03-01), Simpson et al.
patent: 4070617 (1978-01-01), Kachel et al.
Becton Dickinson and Company
Rolinec Rudolph V.
Snow Walter E.
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