A gas tank liner comprises: a cylindrical section formed using a first resin; and a dome section formed using a second resin, the dome section being arranged at each axially opposite end of the cylindrical section, wherein either one of the first resin or the second resin has a higher linear expansion coefficient and higher yield strain than the other, the yield strain being the threshold of strain that, when met, makes the first resin or the second resin incapable of restoring its original state if the first resin or the second resin strains and yields in response to the application of external force.

A gas tank liner comprises: a cylindrical section formed using a first resin; and a dome section formed using a second resin, the dome section being arranged at each axially opposite end of the cylindrical section, wherein either one of the first resin or the second resin has a higher linear expansion coefficient and higher yield strain than the other, the yield strain being the threshold of strain that, when met, makes the first resin or the second resin incapable of restoring its original state if the first resin or the second resin strains and yields in response to the application of external force.

The present invention is a method for rehabilitating, repairing, and replacing manholes and connected sewer lines. In some embodiments, a compressed liner is inserted through the manhole access hole or the connected sewer lines. Prior to insertion, the liner may be cut and/or folded to be compressed to a size that can fit through the manhole opening or the sewer lines. Once inserted in the manhole or sewer lines, the liner should be expanded, and if necessary, bonded together with a resin along the separation line. Next, a bonding material may be injected between the liner and a surface of the manhole or sewer line to seal any cracks or fissures in the brick or concrete wall and to seal the liner against the existing manhole or sewer line to improve structural integrity and longevity. A new corbel may then be installed and bonded to the liner.

A method for producing a containing system for a liquid dispenser having a dimensionally stable outer container and a collapsible inner container, in the form of a pouch, arranged within the outer container. The method includes starting from the outer container, at least one layer of a pouch material being applied to an inner wall of the outer container. For this purpose, the pouch material is applied in the form of a liquid or powder to the inner wall, where, after solidifying or fusing, it forms a ply of a wall, of the inner container. The ply detaches from the inner wall of the outer container when the inner container collapses.

A method for producing a containing system for a liquid dispenser having a dimensionally stable outer container and a collapsible inner container, in the form of a pouch, arranged within the outer container. The method includes starting from the outer container, at least one layer of a pouch material being applied to an inner wall of the outer container. For this purpose, the pouch material is applied in the form of a liquid or powder to the inner wall, where, after solidifying or fusing, it forms a ply of a wall, of the inner container. The ply detaches from the inner wall of the outer container when the inner container collapses.

The invention relates to a device for hardening resin-impregnated lining tubes with high-energy radiation, comprising at least one radiation source for producing high-energy radiation and at least one power control device for regulating the electrical power output at the at least one radiation source, at least one nominal parameter representing the desired electrical power output of the power control device being adjustable or adjusted, and the actual power received from the at least one radiation source being measured by means of a measuring device and permanently compared with the nominal parameter, wherein in the event of falling short of the nominal parameter, the power control device increases the power output, and in the event of the nominal parameter being exceeded, the power output is reduced.

A rehabilitated pipe system and a method for rehabilitating a pipe system. A lines a host pipe and a coupling member configured for being operatively coupled to a mechanical coupler is positioned adjacent the host pipe so that a connecting section of the liner extends into the coupling member. The connecting section of the liner is adhesively bonded to the coupling member, and the mechanical coupler is installed to fluidly couple the liner to another fluid conducting structure. The connecting section of the liner can be formed in a portion of the host pipe that is removed after lining. The coupling member can be flanged or include a lateral coupling tube. The mechanical coupler can, e.g., be a ductile iron coupler or a bolt.

A rehabilitated pipe system and a method for rehabilitating a pipe system. A lines a host pipe and a coupling member configured for being operatively coupled to a mechanical coupler is positioned adjacent the host pipe so that a connecting section of the liner extends into the coupling member. The connecting section of the liner is adhesively bonded to the coupling member, and the mechanical coupler is installed to fluidly couple the liner to another fluid conducting structure. The connecting section of the liner can be formed in a portion of the host pipe that is removed after lining. The coupling member can be flanged or include a lateral coupling tube. The mechanical coupler can, e.g., be a ductile iron coupler or a bolt.

A liner (10) for lining a microwave oven (M) to prevent food from adhering to the top (T), sides (R, L), and floor (F) of the microwave during the cooking of food. The liner has a top panel (12), and three side panels (18, 20, 22) which are initially folded in place with the top panel of the liner first being installed and then the other panels in a prescribed sequence. A two-sided tape (14) is used for adhering the panels to corresponding sides of the microwave. The liner further includes a panel (28) similarly installed on the floor of the microwave, this piece having a central opening which exposes the turntable installed in the floor of the microwave. A separate circularly shaped panel (30) attaches to the top of the turntable.

A liner (10) for lining a microwave oven (M) to prevent food from adhering to the top (T), sides (R, L), and floor (F) of the microwave during the cooking of food. The liner has a top panel (12), and three side panels (18, 20, 22) which are initially folded in place with the top panel of the liner first being installed and then the other panels in a prescribed sequence. A two-sided tape (14) is used for adhering the panels to corresponding sides of the microwave. The liner further includes a panel (28) similarly installed on the floor of the microwave, this piece having a central opening which exposes the turntable installed in the floor of the microwave. A separate circularly shaped panel (30) attaches to the top of the turntable.