Abstract: Combined air bag device and steering column, for use on a vehicle having collision-sensing means and a steering wheel to communicate steering directions to steering mechanism, comprises in one embodiment a hollow tubular steering column connected at its upper end to the steering wheel and at its lower end to the steering mechanism. An elongated tubular reservoir containing pressurized fluid prior to collision is mounted within the hollow tubular steering column, and has an outlet at the upper end thereon. An inflatable cushion is mounted on the steering wheel and closure means is interposed between the outlet of the reservoir and the inlet of the cushion. Opening means, responsive to a signal generated by the collision-sensing means, rapidly opens the closure means thereby to inflate the cushion.

Abstract: Air bag device, for use on a vehicle having collision sensing means, comprises a reservoir of pressurized fluid sealed by a frangible plate and an inflatable cushion connected to the reservoir. A striking member, having a piston at one end and a conical point at the other end, is slidably mounted in a cylinder in the reservoir. Lead styphnate and a length of electrically heated nichrome wire are positioned in the cylinder adjacent the piston. If a collision occurs, the collision sensing means sends an electrical signal, through wiring passing through a hermetic seal in the reservoir, to the length of nichrome wire which ignites the lead styphnate, generating combustion gases which bear against the piston thereby rapidly driving the conical point of the striking member into the frangible plate to shatter it, releasing pressurized fluid from the reservoir into the cushion to inflate it.

Abstract: A safety device is described for use with a vehicle. The device incorporates mechanical cutting means which, in response to a collision, positively cut a seal that fluidally separates a source of pressurized fluid from an air bag. Sensing means are also included which detect a collision and cause the mechanical cutting means to actuate, thus inflating the air bag and protecting occupants of the vehicle. Also described is a manifold which fluidally couples a plurality of sensing means to a plurality of air bags. Upon one or more sensing means detecting a collision, the manifold actuates one or more air bags. A brittle seal, such as tempered glass, is shattered for instantaneous liberation of pressurized fluid. A filter removes debris from the shattered seal.

Abstract: A safety device is described for use with a vehicle. The device incorporates mechanical cutting means which, in response to a collision, positively cut a seal that fluidally separates a source of pressurized fluid from an air bag. Sensing means are also included which detect a collision and cause the mechanical cutting means to actuate, thus inflating the air bag and protecting occupants of the vehicle. Also described is a manifold which fluidally couples a plurality of sensing means to a plurality of air bags. Upon one or more sensing means detecting a collision, the manifold actuates one or more air bags.