Apparatus for forming foil containers

Claim 1

AN APPARATUS FOR EXPLOSIVELY FORMING A BLANK OF RELATIVELY THIN FOIL MATERIAL AND THE LIKE INTO A CONTAINER OF A SELECTED CONFIGURATION HAVING SUBSTANTIALLY SMOOTH WALLS AND MARGINAL EDGES COMPRISING THE COMBINATION OF A RECIPROCATING RAM AND A PLATEN ADAPTED TO COOPERATE WITH THE RAM IN FORMING THE CONTAINER, COOPERATING SURFACES ON THE RAM AND PLATEN FOR ENGAGING AND CLAMPINGLY SEALING THE OUTER MARGINAL PORTION OF THE CONTAINER THEREBETWEEN AND FROM THE ATMOSPHERE UPON BOTTOMING OF THE RAM, CERTAIN OF SAID COOPERATING SURFACES ALSO BEING SLIDABLY ARRANGED RELATIVE TO EACH OTHER WHEREBY DURING ACTUATION OF SAID RAM AND PRIOR TO THE BOTTOMING THEREOF THEY WILL ALSO EFFECT AN IRONING AND SMOOTHING OF THE OUTER PERIPHERAL EDGE OF SAID MARGINAL PORTION AND A BENDING OF THE OUTER PERIPHERAL EDGE OF SAID OUTER MARGINAL PORTION RELATIVE TO THE REMAINDER THEREOF, MEANS FOR DIRECTING A FLUID AT A RELATIVELY HIGH PRESSURE AND A RELATIVELY HIGH VELOCITY AGAINST ONE SIDE AS WELL AS THE INNER PORTION OF THE CONTAINER DURING THE CLAMPINGLY SEALED ENGAGEMENT OF THE MARGINAL PORTION OF THE CONTAINER WITH THE SAID COOPERATING SURFACES OF THE RAM AND PLATEN TO EXPLOSIVELY FORM, AND CONTAINER BACKUP MEANS ON THE RAM DISPOSED IN OPPOSED RELATIONSHIP TO SAID FLUID DIRECTING MEANS FOR ENGAGING AND FORMING THE INNER PORTION OF THE CONTAINER DURING THE DIRECTION OF THE RELATIVELY HIGH VELOCITY FLUID UNDER RELATIVELY HIGH PRESSURE THEREAGAINST.

Claim 2

AN APPARATUS FOR EXPLOSIVELY FORMING A BLANK OF RELATIVELY THIN FOIL MATERIAL AND THE LIKE INTO A CONTAINER OF A SELECTED CONFIGURATION HAVING SUBSTANTIALLY SMOOTH WALLS AND MARGINAL EDGES COMPRISING THE COMBINATION OF A RECIPROCATING RAM AND A PLATEN ADAPTED TO COOPERATE WITH THE RAM IN FORMING THE CONTAINER, COOPERATING SURFACES ON THE RAM AND PLATEN FOR ENGAGING AND CLAMPINGLY SEALING THE OUTER MARGINAL PORTION OF THE CONTAINER THEREBETWEEN AND FROM THE ATMOSPHERE UPON BOTTOMING OF THE RAM, CERTAIN OF SAID COOPERATING SURFACES ALSO BEING SLIDABLY ARRANGED RELATIVE TO EACH OTHER WHEREBY DURING ACTUATION OF SAID RAM AND PRIOR TO THE BOTTOMING THEREOF THEY WILL ALSO EFFECT AN IRONING AND SMOOTHING OF THE OUTER PERIPHERAL EDGE OF SAID MARGINAL PORTION AND A BENDING OF THE OUTER PERIPHERAL EDGE OF SAID OUTER MARGINAL PORTION RELATIVE TO THE REMAINDER THEREOF, MEANS FOR DIRECTING A FLUID AT A RELATIVELY HIGH PRESSURE AND A RELATIVELY HIGH VELOCITY AGAINST ONE SIDE AS WELL AS THE INNER PORTION OF THE CONTAINER DURING THE CLAMPINGLY SEALED ENGAGEMENT OF THE MARGINAL PORTION OF THE CONTAINER WITH THE SAID COOPERATING SURFACES OF THE RAM AND PLATEN TO EXPLOSIVELY FORM, AND CONTAINER BACKUP MEANS ON THE RAM DISPOSED IN OPPOSED RELATIONSHIP TO SAID FLUID DIRECTING MEANS FOR ENGAGING AND FORMING THE INNER PORTION OF THE CONTAINER DURING THE DIRECTION OF THE RELATIVELY HIGH VELOCITY FLUID UNDER RELATIVELY HIGH PRESSURE THEREAGAINST.