Patent ID: 7506891

Claim:
An inflator comprising: an inflator body; a substantially cylindrical booster cup extending in said body, said booster cup having an outer peripheral wall and an end surface extending radially inwardly from said wall; a plurality of apertures formed in said outer peripheral wall; a first propellant charge positioned in said booster cup; a second propellant charge positioned in said inflator body; an initiator assembly operable to activate said first propellant charge, wherein a combustion thereof initiates a combustion of said second propellant charge and ejection of an inflation gas from said inflator body; a filter abutting said booster cup end surface; a perforated disc abutting said filters, the filter comprising a wire mesh material extending continuously from the booster cup end surface to the perforated disc; and a nozzle positioned at an end of said inflator and abutting said perforated disc for supplying an inflation gas.