Patent ID: 8720945

Claim:
A gas generator comprising: at least one pyrotechnic charge contained in at least one chamber delimited by a first outer tubular wall and by at least second and third transversal walls transverse to the first wall, at least one of the first and second walls including at least one through hole for letting through combustion gases of the pyrotechnic charge from the chamber towards the outside of the chamber, wherein the first outer tubular wall is an outermost tubular component of the gas generator; at least one covering sheet located facing the through hole, the at least one covering sheet in a shape of a box inserted inside the chamber and including a first tubular part located facing at least one part of the first tubular wall, the first tubular part of the sheet closed on one side by a second transversal part of the sheet located facing the second transversal wall; and at least one seal gasket provided between the at least one covering sheet and one of the walls isolating the pyrotechnic charge from the through hole, the at least one covering sheet capable of yielding upon combustion of the pyrotechnic charge for letting through the combustion gases of the pyrotechnic charge into the through hole, the seal gasket positioned between the first tubular part of the at least one covering sheet and the first outer tubular wall of the chamber for ensuring the seal between the box and the first outer tubular wall towards the through hole.