Patent ID: 8215675

Claim:
A restraint system ( 14 ) for a seat belt ( 22 ), comprising: one or more pneumatic ports ( 42 , 44 ) for actuating the restraint system ( 14 ) from a first position to a second position; one or more pyrotechnic ports ( 52 , 54 ) for actuating the restraint system ( 14 ) from either the first position or the second position to a third position; an inertia reel ( 16 ) adapted to rotate about a center shaft ( 34 ) and including a belt drum ( 26 ) for receiving the seat belt ( 22 ); and wherein the inertia reel ( 16 ) comprises a drum driver ( 28 ) rotatably mounted around a drive key ( 32 ), wherein the one or more pneumatic ports ( 42 , 44 ) are located in a portion of the drive key ( 32 ).