1983-08-02
1985-12-03
Corbin, John K.
G02B 2124
Patent
active
045562970
ABSTRACT:
An optical counting device of the type used for counting mineral particles suspended within a liquid, for example, ore float tailings. The counting device includes a plate imprinted with a gridiron in its mid-portion, an absorbent doughnut pad removably supported upon the plate and conformed such that the gridiron on the plate is in register with the open space of the doughnut pad and a doughnut housing having an open space at its mid-portion defining a counting chamber in register with the gridiron and open space of the absorbent pad. The counting chamber facilitates a random distribution of suspended particles over the gridiron, while the suspending medium is withdrawn into the absorbent pad.
REFERENCES:
patent: 1630146 (1927-05-01), Trenner
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Barton Mines Corporation, Inc.
Corbin John K.
Lemmo Vincent J.
Olsen Warren E.
Semmes Davis H.
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