Method and machine for making a package from flexible sheet material

Claim 1

THE METHOD OF MAKING PACKAGES IN SUCCESSION FROM CONTINUOUS STRIPS OF MATERIAL AND FILLING THEM WITH A COMMODITY THROUGH A VERTICALLY DISPOSED FILLING TUBE, SAID METHOD COMPRISING FEEDING TWO CONTINUOUS STRIPS OF PRESSURE-MOLDABLE INHERENTLY RESILIENT SELF-SUSTAINING PACKAGING MATERIAL AND PULLING THEM STEP-BY-STEP DOWNWARDLY LONGITUDINALLY IN SPACED OPPOSED RELATION TO EACH OTHER FROM THEIR LEADING ENDS AT OPPOSITE SIDES OF THE DISCHARGE END OF SAID FILLING TUBE, PRESSURE-MOLDING AT LEAST ONE OF SAID STRIPS AT THE END OF ONE STEP OF MOVEMENT AND THEREBY FORMING A MAIN RECESS IN AT LEAST SAID ONE STRIP HAVING A RELATIVELY NARROW AND SHALLOW EXTENSION RECESS JOINED AT ONE OF ITS ENDS TO THE UPPER END OF THE MAIN RECESS AND EXTENDING UPWARDLY THEREFROM WITH THE MARGINS OF SAID STRIPS EXTENDING BEYOND SAID MAIN AND EXTENSION RECESSES, THEN WHILE THE STRIPS ARE AT REST AT THE END OF THE NEXT STEP OF MOVEMENT AND WITH THE RECESSES OF ONE STRIP FACING THE OTHER STRIP, SEALING SAID STRIPS TOGETHER IN ZONES THAT BOUND THE MAIN RECESS WITH THEIR UPPER ENDS IN CLOSE RELATION TO THE LINE OF JUNCTURE OF THE MAIN RECESS AND THE EXTENSION RECESS AND AT OPPOSITE SIDES OF SAID EXTENSION RECESS, THEREBY BENDING SAID STRIPS ALONG SAID LINE OF JUNCTURE INTO TRANSVERSELY SPACED APART DOWNWARDLY CONVERGING RELATION TO EACH OTHER WHILE MAINTAINING THE STRIPS UNSEALED AROUND THE SAID EXTENSION RECESS ABOVE SAID LINE OF JUNCTURE AND IN ENCIRCLING RELATION TO THE DISCHARGE END OF THE FILLING TUBE THEREBY PROVIDING A COMPARTMENT BETWEEN THE STRIPS HAVING A FILLING OPENING FORMED AT THE JUNCTURE OF SAID EXTENSION RECESS WITH THE MAIN RECESS WITH THE FILLING TUBE EXTENDING THROUGH SAID FILLING OPENING INTO SAID COMPARTMENT, AND WHILE THE STRIPS ARE AT REST AFTER FORMATION OF SAID COMPARTMENT DEPOSITING A COMMODITY INTO SAID COMPARTMENT THROUGH SAID FILLING TUBE AND SAID FILLING OPENING, AND AT THE END OF A SUBSEQUENT STEP OF MOVEMENT SEALING SAID STRIPS TOGETHER ABOVE SAID LINE OF JUNCTURE IN ZONES BOUNDING SAID EXTENSION RECESS WHILE LEAVING SAID STRIPS UNSEALED AT THE JUNCTURE OF SAID MAIN RECESS AND SAID EXTENSION RECESS, THEREBY COMPLETING AND CLOSING A PACKAGE HAVING A FILLED COMPARTMENT AND A DISCHARGE NECK THAT IS FORMED AT ONE END OF THE COMPARTMENT BY SAID EXTENSION RECESS.

Claim 2

THE METHOD OF MAKING PACKAGES IN SUCCESSION FROM CONTINUOUS STRIPS OF MATERIAL AND FILLING THEM WITH A COMMODITY THROUGH A VERTICALLY DISPOSED FILLING TUBE, SAID METHOD COMPRISING FEEDING TWO CONTINUOUS STRIPS OF PRESSURE-MOLDABLE INHERENTLY RESILIENT SELF-SUSTAINING PACKAGING MATERIAL AND PULLING THEM STEP-BY-STEP DOWNWARDLY LONGITUDINALLY IN SPACED OPPOSED RELATION TO EACH OTHER FROM THEIR LEADING ENDS AT OPPOSITE SIDES OF THE DISCHARGE END OF SAID FILLING TUBE, PRESSURE-MOLDING AT LEAST ONE OF SAID STRIPS AT THE END OF ONE STEP OF MOVEMENT AND THEREBY FORMING A MAIN RECESS IN AT LEAST SAID ONE STRIP HAVING A RELATIVELY NARROW AND SHALLOW EXTENSION RECESS JOINED AT ONE OF ITS ENDS TO THE UPPER END OF THE MAIN RECESS AND EXTENDING UPWARDLY THEREFROM WITH THE MARGINS OF SAID STRIPS EXTENDING BEYOND SAID MAIN AND EXTENSION RECESSES, THEN WHILE THE STRIPS ARE AT REST AT THE END OF THE NEXT STEP OF MOVEMENT AND WITH THE RECESSES OF ONE STRIP FACING THE OTHER STRIP, SEALING SAID STRIPS TOGETHER IN ZONES THAT BOUND THE MAIN RECESS WITH THEIR UPPER ENDS IN CLOSE RELATION TO THE LINE OF JUNCTURE OF THE MAIN RECESS AND THE EXTENSION RECESS AND AT OPPOSITE SIDES OF SAID EXTENSION RECESS, THEREBY BENDING SAID STRIPS ALONG SAID LINE OF JUNCTURE INTO TRANSVERSELY SPACED APART DOWNWARDLY CONVERGING RELATION TO EACH OTHER WHILE MAINTAINING THE STRIPS UNSEALED AROUND THE SAID EXTENSION RECESS ABOVE SAID LINE OF JUNCTURE AND IN ENCIRCLING RELATION TO THE DISCHARGE END OF THE FILLING TUBE THEREBY PROVIDING A COMPARTMENT BETWEEN THE STRIPS HAVING A FILLING OPENING FORMED AT THE JUNCTURE OF SAID EXTENSION RECESS WITH THE MAIN RECESS WITH THE FILLING TUBE EXTENDING THROUGH SAID FILLING OPENING INTO SAID COMPARTMENT, AND WHILE THE STRIPS ARE AT REST AFTER FORMATION OF SAID COMPARTMENT DEPOSITING A COMMODITY INTO SAID COMPARTMENT THROUGH SAID FILLING TUBE AND SAID FILLING OPENING, AND AT THE END OF A SUBSEQUENT STEP OF MOVEMENT SEALING SAID STRIPS TOGETHER ABOVE SAID LINE OF JUNCTURE IN ZONES BOUNDING SAID EXTENSION RECESS WHILE LEAVING SAID STRIPS UNSEALED AT THE JUNCTURE OF SAID MAIN RECESS AND SAID EXTENSION RECESS, THEREBY COMPLETING AND CLOSING A PACKAGE HAVING A FILLED COMPARTMENT AND A DISCHARGE NECK THAT IS FORMED AT ONE END OF THE COMPARTMENT BY SAID EXTENSION RECESS.