Patent ID: 7452397

Claim:
An inflator filter member for filtering and cooling gas by passing the gas therethrough, the inflator filter member comprising: wire wound into a cylindrical body, the cylindrical body including a cylindrical inner circumferential portion having an outer circumferential surface, and a cylindrical outer circumferential portion covering an outer circumferential surface of the inner circumferential portion; the inner circumferential portion being formed of a superimposition of a plurality of first pattern layers in the radial direction, and the outer circumferential portion being formed of a superimposition of one or more second pattern layers in the radial direction on the outer circumferential surface of the inner circumferential portion; and the first pattern layers and the second pattern layers each being formed from the wire to have a mesh, with the mesh of each second pattern layer being smaller than the mesh of each first pattern layer, wherein a sheet filter member is arranged to cover the outer circumferential surface of the inner circumferential portion, and the outer circumferential portion is arranged to cover an outer circumferential surface of the sheet filter member, with the sheet filter member having pores that are finer than the mesh of each of the first pattern layers.