A welding promoting element for an opening device is insertable into a lid (25) of said opening device to connect said lid (25) to a closing element (10) closing a pouring opening (14) of said opening device; the welding promoting element comprises a sheet element (31) provided with a layer (32) of electrically conductive material, with a first layer (33) of heat-sealable plastic material and with a second layer (34) of heat-sealable plastic material arranged on opposite sides of said layer (32), said layer (32) having a thickness comprised in the range 5-15 m and each of said first layer (33) and second layer (34) having a thickness comprised in the range 10-50 m.

A method for installing filler tube includes the steps of: preparing a fuel tank including an opening; preparing an intervening member including a cylindrical member body and an annular member flange; preparing a filler tube including a cylindrical tube body and an annular tube flange; arranging the intervening member so that not only the member body is arranged in the interior of the fuel tank through the opening but also the member flange locks to a front-side peripheral face of the opening of the fuel tank; and welding not only the front-side peripheral with the tube flange but also the member flange with the tube flange by arranging a hot plate in a facing space between the front-side peripheral face and the tube flange and then warming the front-side peripheral face, the member flange and the tube flange.

Disclosed is a molded container having multiple storage spaces, which includes: a molded body having at least two storage spaces and a connection groove to connect the adjacent spaces to each other; a valve unit seated and fixed in the connection groove to allow the adjacent spaces to communicate with each other or to prevent communication therebetween; and a cover member fixed on the molded body to cover and finish the valve unit coupled to the storage spaces and the connection groove. The valve body of the valve unit is coupled on top of the molded body, thereby enabling easy and quick assembly of a final product and enhancing productivity.

A welding promoting element for an opening device is insertable into a lid (25) of said opening device to connect said lid (25) to a closing element (10) closing a pouring opening (14) of said opening device; the welding promoting element comprises a sheet element (31) provided with a layer (32) of electrically conductive material, with a first layer (33) of heat-sealable plastic material and with a second layer (34) of heat-sealable plastic material arranged on opposite sides of said layer (32), said layer (32) having a thickness comprised in the range 5-15 m and each of said first layer (33) and second layer (34) having a thickness comprised in the range 10-50 m.

A fuel system component used to supply a fuel to a fuel tank or used to discharge the fuel from the fuel tank comprises a first resin layer; and a second resin layer formed in a similar color to that of the first resin layer and configured to include a welding portion that is welded to the first resin layer and an exposed portion that is not adjacent to or in contact with the first resin layer. A belt-like portion is formed on a first resin layer-side and conically shaped surface of the exposed portion of the second resin layer at a distance from a boundary between the welding portion and the exposed portion and is configured to include at least one of a concavity and a convexity extended intermittently or continuously.

A fitting for use in fusion welding mating thermoplastic components includes a weld bead chamber to capture and conceal a bead formed as a result of the fusion weld. The weld bead chamber integrates the bead into the fitting so that the joined parts have a finished look without mechanical polishing or grinding of the completed piece. A stop ledge included in the weld bead chamber prevents over insertion of a pipe or other component into the fitting. A view window in the fitting permits inspection of the finished bead.

Apparatus (10) is for use in a cap applicator unit (12). The apparatus (10) comprises a spigot (14) comprising an elongate body (16) and a head (18) connected to one end of the elongate body (16), and an anvil (20) provided with a hole (22) therein, the elongate body (16) of the spigot (14) mounted in the hole (22) of the anvil (20). The size of the hole (22) of the anvil (20) is sufficiently greater than the size of the elongate body (16) of the spigot (14) to permit angular movement of the spigot (14) relative to the anvil (20). The apparatus (10) further comprises at least one tensioning device (24) and (36) arranged to provide a force tensioning the spigot (14) against the anvil (20).

An opening device for a container comprises a pouring spout defining a pouring opening to pour in use the content of the container, a closing element closing the pouring opening and connected to the pouring spout by a breakable connection, and a closure fitted to the pouring spout in a removable manner to close the pouring opening at a region thereof different from that closed by the closing element; the closing element is formed in one piece with a protruding portion extending through the pouring opening and welded to the closure far away from the closing element.

A tapping saddle for a plastic main pipe carrying a medium includes a stub having a central axis, a saddle piece, and a drill. The drill is configured to be moved axially in the stub. A heating element geometry, which is used for welding the tapping saddle to a main tube outer circumference, is arranged on an inside diameter of the saddle piece. The heating element geometry has a winding having an outer winding region and an inner winding region. In the inner winding region, the winding extends in meandering loops along a circle concentric with the central axis of the stub.

A welding head comprises a welding element (51) for welding a lid (1) to an opening device of a container (10). The welding head (43) further comprises a 5 compensating device (62) operable for compensating a misalignment between the welding element (51) and the lid (1), thereby centering the welding element (51) relative to the lid (1).