초록

A filter for an air bag inflator comprises juxtaposed layers of pierced sheet metal, wire cloth of a first relatively low mesh, ceramic filter media and wire cloth of relatively larger mesh in a radially outwardly extending array.

대표청구항 ▼

[ We claim:] [1.] In an air bag inflator comprising an elongated cylindrical housing, a propellant chamber disposed centrally of said housing; a propellant in said chamber; and means for igniting said propellant at one end of said chamber;an elongated cylindrical filter disposed radially outwardly o

[ We claim:] [1.] In an air bag inflator comprising an elongated cylindrical housing, a propellant chamber disposed centrally of said housing; a propellant in said chamber; and means for igniting said propellant at one end of said chamber;an elongated cylindrical filter disposed radially outwardly of said propellant chamber and radially inwardly of the wall of said housing, said filter comprising a radially inner layer of pierced sheet metal, a layer of wire cloth of a first mesh disposed about said sheet metal layer, a ceramic filter media disposed about said wire cloth, and; a layer of wire cloth of a second mesh greater than the mesh of said first layer of wire cloth disposed radially outwardly of said ceramic filter media.