Measuring and testing – Sampler – sample handling – etc. – Automatic control
Reexamination Certificate
2007-04-10
2007-04-10
Raevis, Robert (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
Automatic control
Reexamination Certificate
active
11056716
ABSTRACT:
A wide range continuous diluter for diluting gases that contain small particles to allow subsequent measurement of the diluted gases with an instrument is provided. A dilution gas inlet receives a dilution gas, and a sample gas inlet receives a sample gas. A flow meter measures the sample gas flow rate. A mixer receives and mixes the dilution gas and the sample gas at a dilution ratio. An instrument flow outlet provides a well-defined flow into the instrument from the mixture flow. A make-up gas inlet is arranged to provide make-up gas into the mixture flow at a controlled rate. Because the dilution gas flows at a controlled rate and the mixture flows at a controlled rate, changing the flow rate of the make-up gas causes a responsive change in the sample gas flow rate, thereby allowing continuous adjustment and control of the dilution ratio when desired.
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Asano Ichiro
Wei Qiang
Brooks & Kushman P.C.
Horiba Ltd.
Raevis Robert
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