Airbag device having an inner flexible heat shield and flow direction bag
AssigneeSandia Corporation
InventorsJames M. Nelsen, Kenneth W. Gwinn
Life of this patent
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Abstract
The present invention relates to an inflatable occupant restraint device having an inflator, an outer bag disposed around the inflator to allow the outer bag to be filled with gas produced by the inflator, an inner bag, disposed in between the outer bag and the inflator, wherein the inner bag is made of a flexible material having at least one flow outlet in the flexible material altering the flow of gas produced by the inflator. The inner bag protects the outer bag from hot gases and particles emanating from the inflator. The inner bag may also have a pattern of stitched seams forming gas flow outlets to impart a desired flow pattern to the inflating gases.
Claims18
An inflatable occupant restraint device comprising:
- an inflator;
- an inner bag disposed around the inflator wherein the inner bag is made of a flexible material having at least one flow outlet formed by a seaming the flexible material;
- an outer bag, disposed around the inner bag in a manner allowing the outer bag to be filled with gas produced by the inflator;
- and
- wherein the seam fastens two different pieces of the flexible material together.
An inflatable occupant restraint device comprising:
- an inflator;
- an inner bag disposed around the inflator wherein the inner bag is made of a flexible material having at least one flow outlet formed by folding portions of the flexible material to an apex;
- an outer bag, disposed around the inner bag in a manner allowing the outer bag to be filled with gas produced by the inflator.
Dependencies are inferred from the claim text.