Hydraulic and earth engineering – Fluid control – treatment – or containment
Reexamination Certificate
2006-07-11
2006-07-11
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Fluid control, treatment, or containment
C405S053000
Reexamination Certificate
active
07073976
ABSTRACT:
A type of under-dispenser containment system that is easier to install, inspect and repair primary and secondary piping connections located underneath an above ground dispensing unit. This shallow type containment chamber has angled sidewalls that permit underground pipeline connections to be made directly to specially designed shear valves without the need for a riser pipe assembly.
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