Carton sealing machine

Claim 1

A CARTON-FOLDING AND CARTON-GLUING MACHINE SUITABLE FOR SLEEVE-TYPE CARTONS OF THE RECTANGULAR OPEN-END TYPE COMPRISING CONVEYER MEANS FOR MOVING IN ONE DIRECTION A SUCCESSION OF FIBERBOARD CARTONS, WHICH CARTONS ARE SET UP TO RECTANGULAR FORM WITH AT LEAST ONE OPEN END, WHEN SAID CARTON AND A FIRST WALL THEREOF REST ON SAID CONVEYOR MEANS AND SAID WALL EXTENDS AS A COPLANAR FIRST FLAP, AND WHEN EACH REMAINING SIDE WALL OF THE CARTON HAS A COPLANAR FLAP EXTENSION POSITIONED 90* FROM ITS SEALED POSITION OVER THE OPENING OF SAID END, FIRST AND SECOND MEANS TO MOVE THE INNER FLAPS EXTENDING FROM THE TWO SIDE WALLS ADJACENT SAID FIRST SIDE WALL SUBSTANTIALLY INTO THEIR SEALING POSITION OVER SAID OPENING, THIRD MEANS POSITIONED OUT OF THE PATH OF THE FOURTH AND REMAINING FLAP TO APPLY HEAT-ACTIVATABLE LIQUID ADHESIVE MATERIAL TO THE INNER FACE OF THE FIRST FLAP FROM THE IMMEDIATE VICINITY OF THE ENDS OF SAID FLAP INWARDLY FOR UNITING THE INNER FACE OF SAID FIRST FLAP TO THE OUTER FACES OF SAID INNER FLAPS, FOURTH MEANS TO APPLY SAID ADHESIVE MATERIAL TO AT LEAST ONE OF THE FACES FORMING THE INTERFACE BETWEEN SAID FIRST FLAP AND THE REMAINING FOURTH FLAP WHEN SAID FOURTH FLAP IS LATER FOLDED ONTO THE OUTER FACE OF SAID FIRST FLAP IN A FOLDED POSITION OF THE FIRST FLAP OVER SAID INNER FLAPS, FIFTH MEANS TO FOLD THE ADHESIVE-BEARING FIRST FLAP OVER AND ONTO THE OUTER FACES OF THE INFOLDED INNER FLAPS FOR LATER UNITING THEM TO THE FIRST FLAP BY SAID ADHESIVE CARRIED ON SAID INNER FACE OF SAID FIRST FLAP, SIXTH MEANS FOR FOLDING SAID REMAINING FOURTH FLAP ONTO THE RESULTING IN-FOLDED FIRST FLAP, HEATED PLATEN-MEANS POSITIONED TO HOLD SAID FLAPS IN CONTACT IN SEALING POSITION EACH AT 90* TO THE PLANE OF THE RECTANGULAR OPENING OF THE CARTON AS SAID CONVEYER MEANS MOVES THE RESULTING CLOSED CARTON-END SLIDINGLY ALONG SAID PLATEN-MEANS, SAID PLATEN-MEANS HAVING AN EXTENT ALONG THE LINE OF CONVEYANCE AND A TEMPERATURE BOTH SUFFICIENT IN COMBINATION TO ACTIVATE AND SET THE ADHESIVE BETWEEN THE FLAPS.