摘要:
A self-supporting bladder that can be installed into existing storage tanks, particularly into underground storage tanks and a method of forming a double walled tank using the same. This self-supporting bladder serves as the inner wall, utilizing the existing tank as the outer wall of a double wall system, or can provide a double wall system such as through the use of an insert placed in the bladder.
摘要:
A liner, a double-walled tank including such a liner, and a method for retrofitting or creating such a liner wherein the liner is designed to be self-supporting. Specifically, the liner is formed by adding structures to the inner surface of an existing single-walled or double walled tank which project from the inner surface of the tank into the internal volume. The combination of the surfaces of the structures and the remaining inner surfaces of the tank form a modified inner surface which then has a liner placed adjacent thereto. The liner is hardened or other fixed in form to provide for an internal liner which retains negatives of the shapes of the structures and is capable of resisting deformation should the original tank be removed and the liner be filled with material that originally would occupy the tank.
摘要:
A conduit is connected to the interstice between an outer and inner wall of a storage tank or the liner thereof and may be used to monitor the integrity of the interstice. The conduit comprises a coupling in fluid communication with the interstice, a tube connected at one end to the coupling and having a length sufficient to extend into a riser pipe of the tank. The conduit may also include a bushing holding the tube apart from the tank and providing for the variable positioning of the tube with respect to the tank. A method of monitoring the integrity of the interstice uses monitoring equipment connected to the conduit.
摘要:
A self-supporting bladder that can be installed into existing storage tanks, particularly into underground storage tanks and a method of forming a double walled tank using the same. This self-supporting bladder serves as the inner wall, utilizing the existing tank as the outer wall of a double wall system, or can provide a double wall system such as through the use of an insert placed in the bladder.
摘要:
A conduit is connected to the interstice between an outer and inner wall of a storage tank or the liner thereof and may be used to monitor the integrity of the interstice. The conduit comprises a coupling in fluid communication with the interstice, a tube connected at one end to the coupling and having a length sufficient to extend into a riser pipe of the tank. The conduit may also include a bushing holding the tube apart from the tank and providing for the variable positioning of the tube with respect to the tank. A method of monitoring the integrity of the interstice uses monitoring equipment connected to the conduit.
摘要:
A conduit is connected to the interstice between an outer and inner wall of a storage tank or the liner thereof and may be used to monitor the integrity of the interstice. The conduit comprises a coupling in fluid communication with the interstice, a tube connected at one end to the coupling and having a length sufficient to extend into a riser pipe of the tank. The conduit may also include a bushing holding the tube apart from the tank and providing for the variable positioning of the tube with respect to the tank. A method of monitoring the integrity of the interstice uses monitoring equipment connected to the conduit.
摘要:
A fibrous reinforced flexible hose for conveying fluids such as paint under pressure is provided with a composite core tube preferably simultaneously co-extruded from two or more synthetic polymers which are in intimate contact with each other. The inner layer of the composite core tube is nylon or other chemical resistant polymer which may or may not be cross-linked and the outer layer is a cross-linked electrically semi-conductive synthetic polymer layer which serves as a ground for static electricity. In the process of making the hose, the semi-conductive layer is preferably cross-linked by irradiation as a means of improving its higher temperature performance capabilities and to minimize changes in the electrical resistance of the semi-conductive layer that might arise from dynamic use of the hose.
摘要:
A dimensionally stable, flexible, hydraulic hose having an elastomeric core tube cross-linked by irradiation with ionizing electrons, a fibrous reinforcing layer surrounding the core tube which prevents the core tube from expanding with increase in pressure and a protective elastomeric sheath about the reinforced core tube.
摘要:
An apparatus and method for providing a water impenetrable barrier between an underground duct and an access opening. The apparatus is particularly well suited to cover a secondary opening in a containment sump of an underground storage tank or the manway of a sanitary sewer, catch basin or other manhole system. The apparatus includes a lid, inflatable seal and pressurized tank contained within the lid to inflate the seal. When sealed to the access opening, the lid restricts the inflow of water or other debris into the interior of the underground duct and restricts removal of the lid.