Abstract: The invention relates to a tank cover for mounting on a filler neck of a container, including a grip cap, a threaded part and a locking mechanism which is provided between the grip cap and threaded part, wherein the locking mechanism is formed by latching noses and by elastically deformable latching lugs interacting therewith, the latching lugs are integrally formed on the threaded part and the latching noses are integrally formed on the grip cap, or the latching lugs are integrally formed on the grip cap and the latching noses are integrally formed on the threaded part. Here, the latching lugs are formed on or in the vicinity of a thread turn of the threaded part.

Abstract: Filler neck, including a passage extending along a longitudinal axis, at least one permanently magnetic element being arranged annularly around the longitudinal axis, at least in regions, outside the passage and able to generate a permanent magnetic field in the passage, and either at least one ferromagnetic element arranged annularly around the longitudinal axis, at least in regions, outside the passage, the at least one permanently magnetic element and the at least one ferromagnetic element being arranged so as to be adjacent and so as to overlap, at least in regions, viewed in the direction of the longitudinal axis, or the at least one permanently magnetic element having a height, viewed in the direction of the longitudinal axis, that is different from 10 mm, and arranged in the filler neck such that a magnetic field generated by the at least one permanently magnetic element has a maximum attractive force, towards the longitudinal axis, in a specified position in the passage.

Abstract: The invention relates to a tank cover for mounting on a filler neck of a container, including a grip cap, a threaded part and a locking mechanism which is provided between the grip cap and threaded part, wherein the locking mechanism is formed by latching noses and by elastically deformable latching lugs interacting therewith, the latching lugs are integrally formed on the threaded part and the latching noses are integrally formed on the grip cap, or the latching lugs are integrally formed on the grip cap and the latching noses are integrally formed on the threaded part. Here, the latching lugs are formed on or in the vicinity of a thread turn of the threaded part.

Abstract: A device for preventing the incorrect filling of a container includes a fuel delivery nozzle with an outlet pipe, a container filler neck, into which an end of the fuel nozzle is inserted and a permanent magnet assembly. The magnet assembly includes a first permanent magnet subassembly, with an individual magnet, on one of the outlet pipe and the filler neck and a second permanent magnet subassembly with a plurality of permanent magnets arranged in an annular pattern. The second permanent magnet subassembly is arranged on another of the outlet pipe and the filler neck whereby the first permanent magnet subassembly is arranged radially within the second permanent magnet subassembly, or vice versa, when the fuel nozzle is inserted. The second permanent magnet subassembly is arranged entirely rotatable and is oriented corresponding to the first permanent magnet subassembly when the fuel nozzle is inserted.

Abstract: A closure lid for an expansion tank of a cooling system of an internal combustion engine has integrated therein a directional control valve that decouples the expansion tank from the cooling circuit by pressure control or temperature control and integrates the expansion tank again into the cooling circuit after the internal combustion engine has reached its operating temperature.

Abstract: An insert for a filler neck of a urea container in diesel-operated motor vehicles, preferably lorries, wherein two plastic components which preferably engage into one another and receive, between them, a preferably annular component which is composed of magnetic material and is magnetized permanently before the installation, are welded to one another in a gas-tight and liquid-tight manner.

Abstract: A filler tube for a tank made of plastic for preventing an incorrect filling of the tank is provided with a permanent magnet, which is accommodated in a liquid-tight manner, and with a plastic holder for holding the permanent magnet. The aim of the invention is to provide a filler tube of the aforementioned type for a tank made of plastic, which can be manufactured more easily, has fewer components and which can be mounted more easily. To this end, the filler tube is made of plastic and the plastic holder, which holds the permanent magnet, is directly connected in a liquid-tight manner to the filler tube.