Method of retrofitting existing fuel tanks
Patent
·
OSTI ID:6984229
This patent describes the method of preventing leakage from or into an underground fuel storage tank having a fill pipe extending upwardly therefrom to ground level. It comprises: creating an access opening in the tank to permit a person to enter the interior of the tank; positioning an inverted V-shaped perforated channel along the bottom length of the tank; placing a leak monitoring means within the perforated channel for sensing the presence of fluids; positioning a flexible liner means adjacent the interior wall surfaces of the tank to create a flow path therebetween.
- Assignee:
- NOV; NOV-90-024014; EDB-90-129862
- Patent Number(s):
- A; US 4920786
- Application Number:
- PPN: US 7-348379A
- OSTI ID:
- 6984229
- Country of Publication:
- United States
- Language:
- English
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