of the end part 17 the cross section of each vent passage 16 22 occupies in each case about 20 of the pipe cross section the straight part 31 of the pourer pipe 14 possesses from the crank to the securing end 18 a length of about 20 cm the end part 32 protruding at an angle has a length of about 4 cm from the crank and includes with the straight part 31 an angle of about 110 u00b0 the straight part 31 here has an external diameter of about 3 cm with an external wall thickness of about 2 mm the end part 32 protruding at an angle has an external diameter of about 2 5 cm and likewise an external wall thickness of about 2 mm the partitions 26 and 27 have a wall thickness of about 1 mm the vent passages 16 22 reach at least approximately from the exit end of the end part 17 to about 2 cm beyond the crank into the straight part 31 the entire pourer pipe is produced in a manner known per se as an injection moulding from synthetic plastics material in using a can with attached pourer pipe firstly the can is held so that the pourer pipe protrudes upwards in this position the end part is pushed into the filler pipe of a car for example.