B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
61/2.1
B65D 90/04 (2006.01) E02D 31/00 (2006.01)
Patent
CA 1303863
PRESSURE BARRIER LINER Abstract of the Disclosure A pressure barrier liner is an assembly of low permeability membranes disposed one above the other. A region is encapsulated between each adjacent pair of membranes. A pressurized fluid such as air or water is introduced into a selected group of the encapsulated regions to pressurize them to a selected pressure or pressures, thereby ensuring that any flow through the membranes or through disruptions in the membranes will be from within the pressurized regions to the regions outside the membranes which encapsulate the pressurized regions, rather than from the fluid storage region above the membranes, through the membranes and into the region beneath the membranes which is to be protected by the liner. Alternatively, a selected group of the encapsulated regions may be depressurized to a selected pressure or pressures, thereby ensuring that any fluid flow through disruptions in the membranes is withdrawn, thus again preventing fluid escapement from the fluid containment region above the membranes, through the membranes and into the region beneath the membranes which is to be protected by the liner. The pressure within, or the flow rate to or from the encapsulated regions may be monitored to ascertain the rate at which the liner would leak if not pressurized or depressurized. If leaks are detected a sealing material may be injected into the encapsulated regions to reduce further leakage.
538604
Robertson Andrew M.
Van Woudenberg Walter
Oyen Wiggs Green & Mutala Llp
Robertson Barrier Systems Corporation
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