G - Physics – 05 – D
Patent
G - Physics
05
D
G05D 11/00 (2006.01) B01F 3/02 (2006.01) G01M 3/20 (2006.01) G05D 11/13 (2006.01)
Patent
CA 2144259
A tracer gas and a carrier gas, such as helium and nitrogen, are blended using flow restrictive orifices in the flow lines for each gas. A process controller is used for automatic adjustment of a control valve in the tracer gas flow line in response to variations in pressure, temperature and flow in the flow lines.
Geary Cathy Jones
Knight Larry Felix
Lalumandier Steven Robert
Praxair Technology Inc.
Sim & Mcburney
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