Fecal flotation apparatus

Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension and sifting

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Details

210927, 422101, 206229, B03B 700

Patent

active

043188036

ABSTRACT:
An apparatus for preparing a liquid suspension of particles, such as an aqueous suspension of parasite eggs, for microscopic examination. The apparatus includes a vial for holding the suspension and a plunger in the form of a tubular cup having a perforated base through which the suspension is displaced, upwardly into the cup, as the plunger is lowered into the vial. The plunger's base functions as a filter selective for particle size. The apparatus is intended to be used by placing at least a predetermined amount of suspension in the vial, and inserting the plunger in the vial until a convex crown forms at the plunger's open upper end. The suspension particles are collected by touching an examination slide to the crown so formed.

REFERENCES:
patent: 3661265 (1972-05-01), Greenspan
patent: 3819045 (1974-06-01), Greenwald
patent: 3905895 (1975-09-01), Addis
patent: 3936373 (1976-02-01), Studer
patent: 4007012 (1977-02-01), Greenwald
patent: 4032437 (1977-06-01), Greenwald
patent: 4057499 (1977-11-01), Buono
patent: 4225423 (1980-09-01), Cotey

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