Apparatus for counting particles attached to surfaces of a solid

Details Apparatus for counting particles attached to surfaces of a solid Apparatus for counting particles attached to surfaces of a solid

1988-09-20

1990-01-09

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Counting animate or inanimate entities

134184, G01N 1510, G01N 2902, B08B 312

Patent

active

048933201

ABSTRACT:
An apparatus for counting particles attached to surfaces of a solid is disclosed which includes an external tank, an internal tank disposed within the external tank for hermetically accommodating a measuring liquid into which a sample having particles attached to the surfaces thereof is to be immersed, a driving mechanism for rotating the internal tank with respect to the external tank, sonic wave generators provided on the external tank for generating sonic waves having a plurality of different frequencies toward the internal tank, and a measuring mechanism connectable to the internal tank in a hermetic fashion for counting the number of particles in the measuring liquid removed from the sample by the sonic waves generated from the sonic wave generators.

REFERENCES:
patent: 3830969 (1974-08-01), Hofstein
patent: 4409999 (1983-10-01), Pedziwiatr
patent: 4618263 (1986-10-01), McCord
patent: 4710021 (1987-12-01), von Behrens
patent: 4736760 (1988-04-01), Coberly et al.

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