Gas: heating and illuminating – Distribution – Leakage
Reexamination Certificate
2006-06-06
2006-06-06
Caldarola, Glenn (Department: 1764)
Gas: heating and illuminating
Distribution
Leakage
C048S127300, C048S190000, C048S192000, C048S193000, C048S194000, C137S002000, C137S487500
Reexamination Certificate
active
07056360
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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Caldarola Glenn
Gunter, Jr. Charles D.
Patel Vinit H.
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