Patent ID: 7044502

Claim:
An inflator for a motor vehicle comprising: an upper housing attached to a lower housing forming an exterior surface for the inflator, a primary chamber having ignitable gas generant for producing inflation gas, a secondary chamber having ignitable gas generant for producing inflation gas, and a divider plate for isolating the primary chamber from the secondary chamber, wherein the primary chamber is a space surrounded by the upper housing, a first filter and the divider plate, wherein the secondary chamber is a space surrounded by the lower housing, a second filter, and the divider plate, wherein the divider plate has a first hole for receiving a first igniter and having a second hole for receiving a second igniter, wherein the divider plate extends substantially across an inner diameter of the lower housing, wherein the divider plate is movable during operation of the inflator whereby the divider plate is displaced toward the primary chamber when the internal pressure of the secondary chamber is greater than the primary chamber.