Patent ID: 8765071

Claim:
A device ( 20 ) for generating a gas from solid and liquid generates, the device ( 20 ) comprising: an outer cylindrical housing ( 26 ) formed from a carbon fiber wrap, the outer housing ( 26 ) having an interior area, an upper end, a lower end, and an intermediate extent therebetween, the lower end being enclosed by a pressure cap ( 28 ) and an o-ring seal ( 32 ), the upper end enclosed by a plug ( 36 ) and a burst disc ( 37 ), a check valve ( 38 ) mounted within the upper end of housing ( 26 ); an inner cylindrical container ( 42 ) containing a liquid nitrogen generate, the inner container ( 42 ) including an upper end, a lower end, and an intermediate extent therebetween, the upper end enclosed by a first rupture disc ( 48 ) and the lower end enclosed by a second rupture disc ( 52 ), the inner container ( 42 ) positioned within the interior area of the outer housing ( 26 ) to thereby create a space between the inner container ( 42 ) and the outer housing ( 26 ), a vacuum being created within the space by way of check valve ( 38 ); an upper ceramic mounting ring ( 56 ) positioned between the upper end of the inner container ( 42 ) and the upper end of the outer housing ( 26 ), the upper mounting ring ( 56 ) including a through hole to allow for the passage of a gas; a series of intermediate ceramic mounting rings ( 58 ) positioned between the intermediate extent of the inner container ( 42 ) and the intermediate extent of the outer housing ( 26 ), the intermediate mounting rings ( 58 ) each including a through hole to allow for the passage of a gas; a lower container ( 62 ) positioned within the interior area of outer housing ( 26 ), the lower container ( 62 ) containing a solid sodium azide generate ( 22 ), the lower container ( 62 ) including an upper nozzle ( 64 ) that is in facing relation with the second rupture disc ( 52 ) of the inner container ( 42 ), a squib ( 34 ) operatively connected to the lower container ( 62 ) and adapted to ignite the solid generate ( 22 ); a lower ceramic mounting ring ( 66 ) positioned between the inner container ( 42 ) and the lower container ( 62 ), the lower ceramic mounting ring ( 66 ) including a through hole to allow for the passage of gas; wherein ignition of the solid generate ( 22 ) by the squib ( 34 ) generates a hot gas ( 67 ) that is accelerated by nozzle ( 64 ) and ruptures disc ( 52 ), the hot gas ( 67 ) entering inner container ( 42 ) and the space between inner container ( 42 ) and outer housing ( 26 ), the hot gas ( 67 ) passing through the through holes in the lower ceramic mounting ring ( 66 ), the intermediate mounting rings ( 58 ), and the upper mounting rings ( 56 ), and wherein the hot gas ( 67 ) heats the liquid generate to generate a cold gas ( 69 ), the hot gas ( 67 ) and the cold gas ( 69 ) mixing within inner container ( 42 ), the mixed gas being of a moderate temperature, the mixed gas rupturing first disc ( 48 ) and burst disc ( 37 ) to thereby exit the device ( 20 ).