| abstract |
A crash restraint device for an automobile comprising an inflatable bag mounted forward of the automobile passenger seat, which inflates upon crash impact. A bag inflating device comprising a matrix of a first composition which produces a higher temperature gas product, interspersed with increments of a second composition which endothermically produce a gas product of a lower temperature, with the resulting gas mixture being used to inflate the bag. In one embodiment coolant gas producing particles are arranged in an interconnected matrix of an exothermically reacting gas producing composition. In a second embodiment there is a plurality of capsules, each having an interior of a vaporizing coolant material and a coating of an exothermically reacting composition. In a third embodiment there is a mixture of coolant particles and exothermically reacting gas producing particles. |