Method of making double-wall tank for the storage of liquids

Details Method of making double-wall tank for the storage of liquids Method of making double-wall tank for the storage of liquids

1995-10-23

1997-09-09

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Assembling or joining

29423, 29458, 220445, B23P 1700

Patent

active

056643136

ABSTRACT:
A method is disclosed for manufacturing from a rigid single-wall tank having spindle members attached to and extending outwardly of each of its end portions a rigid double-wall tank for the storage of liquids. The method includes applying to the exterior surface of the inner tank a spacing material, applying over the inner tank and the spacing material an outer sheath with at least a portion of the outer sheath applied adjacent to each spindle member then removing at least one of the spindle members from the end portions of the inner tank and urging the outer sheath overlying the end portions away from the end portions to form a space between the end portion of the inner tank and the outer sheath, inserting into the spacing material and then sealing the end portion of the inner tank by applying a substantially liquid-tight sheath. From this method there results a rigid double-wall storage tank having an outer sheath spaced from the outer surface of the inner tank along at least a portion of cylindrical side walls and the end portions of the inner tank.

REFERENCES:
patent: Re34203 (1993-03-01), Palazzo
patent: 3412891 (1968-11-01), Bastone et al.
patent: 4394931 (1983-07-01), Cotgreave et al.
patent: 4552281 (1985-11-01), Schneider
patent: 4588622 (1986-05-01), Sukarie
patent: 4655367 (1987-04-01), Palazzo
patent: 5102005 (1992-04-01), Trussler
patent: 5167353 (1992-12-01), Robbins
patent: 5476189 (1995-12-01), Duvall et al.

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