Method of making double wall storage tank with beaded spacer mea

Details Method of making double wall storage tank with beaded spacer mea Method of making double wall storage tank with beaded spacer mea

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

047809469

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 plurality of spaced apart, generally parallel beads of a hardenable, viscous liquid synthetic resin spacer material to form, between adjacent beads, one or more channels that provide for substantially free passage of liquids through the channels. A substantially imperforate film is stretched across the beads and over the one or more channels to separate the inner tank and the beads 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 beads and the film overlying the beads 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), Leasor
patent: 3848765 (1974-11-01), Durkop
patent: 3921273 (1975-11-01), Kondo et al.
patent: 3987925 (1976-10-01), Sattelberg
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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