Patent ID: 6991005

Claim:
A piercing apparatus for piercing a small compressed gas bottle to quickly inflate a sack, comprising: an expandable sack ( 1 ) being arranged on a base ( 102 ; 103 ) of a container ( 100 ; 104 ); a compressed gas feeder ( 2 ) located below the expandable sack ( 1 ), including: a small compressed gas bottle ( 6 ) having a pierceable mouth ( 60 ) and an externally threaded neck ( 61 ), a housing ( 20 ) being connected to the small compressed gas bottle ( 6 ) and to the expandable sack ( 1 ), and in an inner chamber ( 21 ) of the housing a piercing element ( 7 ) having a bit ( 72 ) provided with an axial passageway ( 73 ) communicating with said expandable sack ( 1 ), a release mechanism ( 8 ), being charged by a counteracting spring ( 89 ) to push the piercing element ( 7 ) against the small compressed gas bottle ( 6 ), comprising a release element being connected to a flexible transmission ( 30 ) of control means ( 3 ); characterized in that: said release element is a protuberance ( 87 ) and is slidably mounted in said inner chamber ( 21 ) of the elongated housing ( 20 ) by the operation of the flexible transmission ( 30 ) against the counteracting spring ( 89 ); and said piercing element ( 7 ) is fixed on a front end of a collet chock ( 70 ), which, as such, is provided, in its rear end, with fingers ( 88 ) to grip said protuberance ( 87 ) of the release element; said collet chock ( 70 ) being slidable between a gripping condition and a releasing condition of said protuberance ( 87 ) upon the operation of control means.