Inflator for a vehicle airbag system and a pyrogen igniter used therein
 An elongated gas generator, or inflator, includes a pyrogen igniter mounted at one end thereof. The pyrogen igniter encloses a unitary grain of ignition material having a centrally located cavity. An initiator, or squib, is located to ignite the unitary grain at the surface of its centrally located cavity. The combustion products given off by the igniter are directed through a port and into a clear ignition channel provided in the center of the pyrotechnic gas generant material which extends the length of the gas generator, thereby causing the gas generant material to produce sufficient gas to inflate an associated airbag. The unitary grain of ignition material used in the pyrogen igniter facilitates and simplifies the assembly and manufacture of the igniter structure. 
Morton International, Inc.
B B
B60R B60R
inventional additional
Donald R. Joseph L. David J.
Lauritzen Ralston Green