System for microscopically analyzing fluids

Details System for microscopically analyzing fluids System for microscopically analyzing fluids

1986-07-10

1989-02-14

Evans, F. L.

Optics: measuring and testing

For size of particles

356246, 356410, 356440, 358 93, G01N 2105, G01N 2184

Patent

active

048042676

ABSTRACT:
An apparatus for microscopically analyzing fluids consisting of subsystems for providing fluid flow and for acquiring and displaying an image. The fluid flow subsystem pumps a portion of the fluid sample from a sample container to a flow-through cell, where a thin planar portion of sample is presented for viewing. The flow-through cell includes a three-part lamination, the two outer members being generally flat and the center member having a display chamber cut out of its central portion. The fluid flow subsystem also includes means for washing the subsystem between samples, by pumping a quantity of solvent through the flow-through cell, the pump and associated tubing. A light beam is passed through the flow-through cell, enabling a video camera to acquire a magnified image of a portion of the sample, which image is displayed on a monitor.

REFERENCES:
patent: 2954472 (1960-09-01), Frenzel
patent: 3552865 (1971-01-01), Leung et al.
patent: 4367043 (1983-01-01), Sweet et al.
patent: 4393466 (1983-07-01), Deindoerfer et al.
patent: 4486097 (1984-12-01), Riley
patent: 4612614 (1986-09-01), Deindoerfer et al.

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