Patent ID: 7328914
Filing Date: 2008-02-12
Classification: B60R,F42B

Abstract:
1. An inflator, comprising: a tubular inflator housing accommodating a pressurized gas therein; ignition means chamber housing defining an ignition means chamber and connected to one end of the tubular inflator housing, the ignition means chamber housing accommodating an igniter and defining a first gas discharge port that allows the ignition means chamber to communicate with an outside of the inflator; a diffuser portion connected to the other end of the tubular inflator housing, the diffuser portion defining a second gas discharge port; a first rupturable plate sealing a first passage between the ignition means chamber and an inside of the tubular inflator housing, the first passage being further provided such that the inside of the tubular inflator housing is in communication with the outside of the inflator through the first gas discharge port after activation of the inflator; a second rupturable plate sealing a second passage between an inside of the diffuser portion and the inside of the inflator housing; and leading means adapted to direct a breaking energy for breaking the second rupturable plate, the leading means being arranged in said inflator housing and extending between the first rupturable plate and the second rupturable plate, wherein, by activation of the igniter accommodated in the ignition means chamber, the first rupturable plate is broken first and the second rupturable plate is broken later.