B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 90/02 (2006.01) B67D 7/78 (2010.01)
Patent
CA 2321808
The invention comprises the composition of and the method for making a novel 3 layer dual containment vessel useable as a manhole, tank or pipe comprising; a flexible inner liquid-tight shell comprised of a thermoplastic; a thin annular space occupied at least in part by a porous geocomposite material that has been applied to the outer face of the flexible inner liquid tight shell; and a flexible exterior liquid-tight shell comprised of a thermoplastic that has been helically wound upon the porous geocomposite material.
Byrne Michael F.
Petroff Larry J.
Rabenau Bryan K.
Chevron Chemical Company Llc
Sim & Mcburney
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