Optical odorization system
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United States of America Patent
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Jun 6, 2006
Grant Date -
May 6, 2004
app pub date -
Nov 4, 2002
filing date -
Nov 4, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system is shown for injecting a chemical, such as an odorant, from a chemical supply into a fluid containing system such as a natural gas pipeline. A tank of odorant is maintained under a positive pressure which exceeds that of the pipeline. An injection conduit communicates the odorant tank with the pipeline. A precise control flow valve, located within the injection conduit, meters odorant to be injected into the pipeline. The odorant is metered on a dropwise basis with individual drops of chemical being counted as they pass through the flow valve into the injection conduit and into the natural gas pipeline.
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