Method of making double wall storage tank for liquids

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

1987-06-11

1988-05-17

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29463, 138149, 156173, 215 122, 220445, 264251, B23P 900

Patent

active

047441372

ABSTRACT:
A method is described for manufacturing a rigid double wall tank from a rigid single wall cylindrical inner tank, in which a substantially rigid sheath is formed over a male mold which has a configuration generally similar to that of the inner tank and provides for molding of projections on the inner surface of such cylindrical sheath portion. The cylindrical sheath portion is then removed from the mold and introduced over the inner tank with the projections extending from the cylindrical inner surface of the sheath to the outer surface of the inner tank, and sheath end portions are applied to the axial extremities of that cylindrical sheath portion, forming a complete sheath enclosing the inner tank.

REFERENCES:
patent: 2303395 (1942-12-01), Schultz et al.
patent: 2551710 (1951-05-01), Slaughter
patent: 3293860 (1966-12-01), Stedfeld
patent: 3746595 (1973-07-01), Leason
patent: 3802975 (1974-04-01), Saidla
patent: 3806391 (1974-04-01), Clay et al.
patent: 3921273 (1975-11-01), Kondo et al.
patent: 4537328 (1985-08-01), Keese
patent: 4579617 (1986-04-01), Oberg et al.

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