US Patent 10442287 Filling device

To prevent deterioration of a sealing structure of a filling device to decrease a possibility that hydrogen gas leaks. In filling devices (100, 101) including a storage tank for storing hydrogen fuel and filling nozzles (10, 11) for filling hydrogen from the storage tank through a fuel filling system (dispenser, filling hose and so on) to an in-vehicle hydrogen filling tank mounted on a vehicle, in a pipe joint main body (1) of the filling nozzles (10, 11) is slidably arranged a rod (2: valve rod) having a valve element at its end against an elastic member (3).