Double wall storage tank for liquids

Details Double wall storage tank for liquids Double wall storage tank for liquids

1986-07-11

1987-04-07

Hall, George T.

Receptacles

Receptacle having flexible, removable inner liner

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

220420, B65D 8724

Patent

active

046553673

ABSTRACT:
A method is disclosed for manufacturing from a rigid single wall tank a rigid double wall tank for storage of liquids. The method includes the steps of applying to at least a portion of the outer surface of the inner tank a flexible sheetlike spacing material having a substantially continuous and generally planar surface with a plurality of projections extending outwardly of the planar surface and engaging the outer surface of the inner tank and then applying over the inner tank outer surface and the spacing material a sheath of a rigid and liquid-tight material. From this method there results a rigid double wall storage tank having an outer sheath spaced from the outer surface of the inner tank.

REFERENCES:
patent: 1927255 (1933-09-01), Brown
patent: 2268517 (1941-12-01), Small
patent: 2767962 (1956-10-01), Blackburn
patent: 2907177 (1959-10-01), Daley et al.
patent: 4537328 (1985-08-01), Keesee et al.

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