Apparatus for providing gases at a desired pressure

Claim 1

GAS PROVIDING APPARATUS COMPRISING, IN COMBINATION A FLEXIBLE BAG HAVING AN OUTLET OPENING, A CANISTER ARRANGED WITHIN SAID BAG, SAID CANISTER CONTAINING A GAS UNDER PRESSURE AND HAVING A PENETRABLE END PORTION, MEANS ARRANGED WITHIN THE BAG FOR PENETRATING THE PENETRABLE END PORTION OF SAID CANISTER TO RELEASE THE GAS THEREFROM, SAID MEANS INCLUDING AN ACTUATING BUTTON ASSOCIATED WITH THE PENETRABLE END PORTION OF THE CANISTER AND HAVING INNER AND OUTER FACES, PENETRATING MEANS SECURED TO THE ACTUATING BUTTON AND HAVING A POINTED END EXTENDING TOWARD THE PENETRABLE END PORTION OF THE CANISTER FROM THE INNER FACE OF SAID ACTUATING BUTTON, MEANS FOR NORMALLY HOLDING SAID ACTUATING BUTTON AND PENETRATING MEANS IN SUCH RELATION TO SAID CANISTER THAT THE POINTED END OF SAID PENETRATING MEANS IS SUBSTANTIALLY IN ENGAGEMENT WITH THE PENETRABLE END PORTION OF SAID CANISTER, SAID CANISTER BEING ENGAGEABLE BY THE HAND OF AN OPERATOR THROUGH SAID BAG AND BEING FREELY MOVABLE BY THE OPERATOR WITHIN SAID BAG TO A POSITION IN WHICH THE OUTER FACE OF THE ACTUATING BUTTON ENGAGES THE INNER FACE OF APORTION OF SAID BAG SO THAT A QUICK IMPACT BLOW MAY BE APPLIED TO THE OUTER FACE OF THAT PORTION OF THE BAG WHICH IS OPPOSITE TO THE OUTER FACE OF THE ACTUATING BUTTON TO TRANSMIT SUFFICIENT FORCE THROUGH THE BAG AGAINST SAID ACTUATING BUTTON TO MOVE THE POINTED END OF SAID PENERTRATING MEANS INTO THE PENETRABLE END PORTION OF THE CANISTER WHILE THE CANISTER IS BEING HELD THROUGH THE BAG BY THE HAND OF THE OPERATOR, AND MEANS INLCUDING THE FORCE OF THE GAS ISSUING FROM SAID CANISTER IMMEDIATELY AFTER IT HAS BEEN PUNCTURED FOR AUTOMATICALLY MOVING THE ACTUATING BUTTON TO ITS NORMAL POSITION TO ENABLE GAS TO BE RELEASED FROM SAID CANISTER AFTER THE CANISTER IS RELEASED FROM THE HAND OF THE OPERATOR.