Image Number 3 for United States Patent #6070903.
An assembly for a vehicle occupant restraint system comprises an inflator and a gas exit tube connected in a gas-tight manner thereto. The inflator is provided with a discharge portion for the gas generated by the inflator when required. The discharge portion comprises a circumferential groove having in cross-section a saw tooth profile with a flank perpendicular to a longitudinal axis of the discharge portion. This flank is located on the side of the groove facing the gas exit tube. The gas exit tube comprises a portion which engages the groove in an interfitting manner by means of a plastically deformed portion and secures the gas exit tube axially thereto at the inflator.