B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
190/16, 26/182,
B65D 90/04 (2006.01) B05D 7/22 (2006.01) B29C 33/00 (2006.01) B29C 41/20 (2006.01) B29C 41/04 (2006.01)
Patent
CA 1324325
Abstract of the Disclosure A tank construction including an outer shell of steel material comprised of two half members welded together. The half members are formed by a deep drawing process. An inner shell of non-corrosive material is cast inside the outer shell by a rotation- al casting procedure with the external surface of the inner shell located adjacent the internal surface of the outer shell. The inner shell of non-corrosive material provides a substantially leak-tight liner for the outer shell to thus prevent contact between the contents of the tank and the outer shell. The rota- tional casting of the inner shell inside the outer shell is accomplished by charging the outer shell with a non-corrosive material and then subjecting the outer shell to a rotational casting movement while heat is applied to the outer shell. The outer shell serves as a mold for the inner shell wherein the mold (outer shell) becomes a permanent part of the completed tank.
596239
Macrae & Co.
State Industries Inc.
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