Abstract: Authentication method and systems using RFID-enabled payment cards are disclosed herein where a server receives a request corresponding to authorization of a payment associated with a payment card from an electronic terminal. The server identifies an electronic device of a user associated with the payment card. The server then transmits an instruction to the electronic device to cause an RFID reader of the electronic device to determine whether an RFID tag corresponding to the payment card is located within a predetermined proximity to the electronic device. When the payment card is located within the predetermined proximity, the server executes a first authentication protocol. Moreover, when the payment card is not located within the predetermined proximity, the server executes a second authentication protocol, wherein the second authentication protocol is more restrictive than the first authentication protocol.

Abstract: An apparatus and method for providing a water impenetrable barrier between an underground duct and an access opening. The apparatus may cover a secondary opening in a corrugated containment sump of an underground storage tank or the manway of a sanitary sewer, catch basin or other manhole system. The apparatus includes a cover, inflatable seal and a tank of compressed nitrogen to inflate the seal. When sealed to the access opening, the cover restricts the inflow of water or other debris into the interior of the underground duct and nitrogen may be released into the sealed access.

Abstract: An apparatus and method is described 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 corrugated containment sump of an underground storage tank or the manway of a sanitary sewer, catch basin or other manhole system. The apparatus includes a cover, inflatable seal and a tank of compressed nitrogen to inflate the seal. When sealed to the access opening, the cover restricts the inflow of water or other debris into the interior of the underground duct and nitrogen may be released into the sealed access to reduce corrosion of components contained within the access.

Abstract: 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.

Abstract: A protocol for testing the integrity of a double-walled underground storage tank.

Abstract: 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.

Abstract: 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.

Abstract: An all-inclusive manway and sump connector designed to allow for the attachment of both manway covers and sumps to the manway of an underground storage tank without the need for an adapter or the retrofitting of the manway which was required with the devices and modalities of the prior art.

Abstract: A protocol for testing the integrity of a double-walled underground storage tank.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: This invention relates to an apparatus and a method of making and using the apparatus to remove vapors from a storage tank, particularly an underground storage tank. In particular, the apparatus provides a combination of a pump and a stack capable of secure connection to a tank, through which combination vapors from the tank can be exhausted at the height of the stack.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to a polyurethane obtainable by reacting a polyisocyanate and a polyol composition comprising a highly branched polysaccharide of randomly bonded glucopyranose units or an alkoxylated derivative of the same. The polysaccharide has an average number of 10–100 glucose residues and said polysaccharide and derivative both have an average functionality of 30 or more. The invention also relates to a process for the production of such a polyurethane as well as a mix for the production of a polyurethane comprising a polyol composition, comprising 2–100 % of a highly branched polysaccharide, at least one catalyst and at least one surfactant.

Abstract: A moldable and/or extrudable poly(enamine ketone-co-alkylene ether) block copolymer is disclosed which has the formula shown below: ##STR1## wherein R' is H or alkyl, alkoxyl, cycloalkyl, cycloalkoxyl and aryl and aryloxyl, A is a poly(enamine ketone) sequence and B is a polyalkylene ether sequence. The poly(enamine ketone-co-alkylene ether) block copolymer is preferably prepared under mild condition by reacting a bispropynone with an amine-terminated poly(alkylene ether); a bispropynone with an organic diamine and an amine-terminated poly(alkylene ether); or by reacting a preformed propynone-terminated poly(enamine ketone) with an amine-terminated poly(alkylene ether).The compolymers have excellent mechanical properties, are moldable and extrudable and are useful for the manufacture of articles such as films, sheaths, fibers for textile products, and other moldable and/or extrudable articles and RIM shaping. These materials are also useful as bonded or welded linings and as hot-melt adhesives.

Abstract: 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.