To improve the performance and ease of closing, it is described a method for enabling or disabling a closing mechanism (30, 40) of a plug (20) on a container or tank, e.g. of a vehicle, wherein an electromagnetic field controls the mechanism.

A lockable cap for a fuel tank. The cap (11, 11B, 11C, 11D, 11E) is provided with a ring stopper (26) for making connection and disconnection between an outer cap (21) and a housing cap (23). The ring stopper releases connection between the housing cap and...

The motor vehicle has a cover (10) and a tank filler stub (12). A vehicle door (14) closes the opening in the cover when the door is closed, and allows opening of the cover when the door is open. The filler stub (12) is positioned at one edge of the door, ...