Method of making double wall storage tank with channeled spacer

Details Method of making double wall storage tank with channeled spacer Method of making double wall storage tank with channeled spacer

1987-10-07

1988-11-01

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29458, 138149, 215 122, 220445, 264251, B23P 900

Patent

active

047809477

ABSTRACT:
A double wall tank for the storage of liquids is manufactured from a rigid single wall inner tank by applying to at least a portion of the exterior surface of the inner tank a hardenable synthetic resin spacer material and forming in the spacer material one or more channels that provide for substantially free passage of liquids through the channels. A substantially imperforate film is stretched across the spacer material and over the one or more channels to separate the inner tank and the spacer material from subsequently applied sheathing material. A substantially rigid outer sheathing material that is substantially liquid-tight is applied over the inner tank exterior and the spacer material and the film overlying the spacer material such that the sheath is spaced from at least a portion of the inner tank exterior surface so as to provide a rigid double wall tank.

REFERENCES:
patent: 761548 (1904-03-01), Sheaff
patent: 2551710 (1951-05-01), Slaughter
patent: 3746595 (1973-07-01), Leason
patent: 3848765 (1984-11-01), Durkop
patent: 3921273 (1975-11-01), Kondo et al.
patent: 3987925 (1976-10-01), Sattelberg
patent: 4400863 (1983-08-01), Schroeder
patent: 4523454 (1985-06-01), Sharp
patent: 4524609 (1985-06-01), Sharp
patent: 4537328 (1985-08-01), Keesee et al.
patent: 4651893 (1987-03-01), Mooney

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