Double wall underground storage tank

Details Double wall underground storage tank Double wall underground storage tank

1991-01-23

1992-05-26

Pollard, Steven M.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220445, 220469, 73492, B65D 9004

Patent

active

051159368

ABSTRACT:
An underground storage tank has an inner wall and an outer wall defining a generally annular space for receiving a leak detecting fluid, and a plurality of ribs bonded to the inner and outer walls and projecting radially outwardly from the inner wall, each rib comprising sidewalls and a top wall, the outer wall being attached to the top wall of each rib but substantially unattached to the sidewalls of each rib, and the outer wall substantially conforming to the contour of the inner wall and the ribs.

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patent: 5020358 (1991-06-01), Sharp

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