Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Filling with exhausting the receiver
Patent
1993-04-08
1994-04-12
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Filling with exhausting the receiver
141 45, 141 86, 141290, 137312, 137372, 73 405R, 73 491, 2851331, 138114, 138121, B67D 500
Patent
active
053017218
ABSTRACT:
The underground secondary containment and simultaneous vapor return piping system is adapted for use at a fuel service station which includes a fuel dispenser, a fuel nozzle and nozzle vapor return structure at a dispensing island, an underground fuel storage tank and a primary fuel delivery pipeline. The system comprises an outer, underground, sealed, larger diameter, secondary containment/vapor return pipeline extending around and axially with the inner, primary fuel delivery pipeline from the underground storage tank to the fuel dispenser to establish secondary containment for the fuel delivery pipeline and simultaneously to establish within the secondary containment/vapor return pipeline and around or about the fuel delivery pipeline, a continuous, uninterrupted, axially extending, interstitial space defining a vapor return path, upper fluid coupling termination structure for coupling (a) the interstitial space within the outer secondary containment/vapor return pipeline to the nozzle vapor return structure and (b) the fuel delivery pipeline to the fuel dispenser nozzle, and lower fluid coupling termination structure for coupling (a) the interstitial space within the outer secondary containment/vapor return pipeline to the first, vapor return opening in a wall of the underground storage tank and (b) the fuel delivery pipeline to the second, fuel outlet opening in a wall of the underground storage tank whereby a continuous uninterrupted, vapor return space or path, in addition to secondary containment, is established in and by the secondary containment/vapor return pipeline, between the upper and lower fluid coupling termination structures and around or about the fuel delivery pipeline.
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Jacyna J. Casimer
Vigil Thomas R.
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