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FLOW-THROUGH CHAMBER FOR PHOTOMETERS TO MEASURE AND COUNT PARTICLES IN A DISPERSION MEDIUM

  • US 3,761,187 A
  • Filed: 12/23/1971
  • Issued: 09/25/1973
  • Est. Priority Date: 12/18/1968
  • Status: Expired due to Term
First Claim
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1. A flow-through chamber for photometric measurement and counting of particles in a dispersion medium, comprising:

  • a transparent top plate;

    a base plate in parallel spaced relation to said top plate;

    means, located between said plates, for defining, in conjunction with said plates, inlet and outlet channels having a first axis and second axis, respectively;

    said first and second axes lying in planes which are in parallel spaced relationship;

    means for defining a passage for connecting adjacent ends of said channels;

    said passage having an axis perpendicular to said first and second axes and having a reduced diameter midportion including a nozzle having a circular cross-section.

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