barrel 20 having a touch hole 26 on a side thereof for ignition of a propellant 24 within the barrel 20 ignition of the propellant 24 drives a projectile 50 through the barrel 20 and into a rupturable seal 36 on a stored gas canister 32 after rupturing the seal 36 the projectile 50 is positively retained between a base end 21 of the barrel 20 and the gas canister 32 application_number US 71624303 A description referring to fig1 there is shown an inflator 10 according to a preferred constructed embodiment of the present invention inflator 10 is operable to supply gas to rapidly inflate an airbag not shown for cushioning a vehicle occupant in the event of a crash or sudden vehicle deceleration in a manner well known in the art all the component parts of inflator 10 are either readily commercially available or are formed from known materials and by known processes inflator 10 includes a first body portion 12 preferably a substantially cylindrical hollow metallic tube and a second body portion 32 that comprises a pressurized gas canister or bottle also preferably substantially cylindrical canister 32 can be any of many known pressurized gas canisters all commercially available a connector 34 also preferably substantially cylindrical and having an inwardly extending wall is preferably positioned between body portions 12 and 32 and preferably friction welded to the respective portions via a process well known in the art it should be appreciated that embodiments are contemplated wherein first body portion 12 is.