Paste applicator

Claim 1

A MACHINE FOR APPLYING PASTE IN CONTROLLED AMOUNTS TO THE FLAPS OF A CONTAINER, COMPRISING A PASTE RESERVOIR, A PASTE APPLICATOR MOUNTED ADJACENT SAID RESERVOIR COMPRISING A NOZZLE BODY HAVING A NOZZLE PLATE THEREON, DUCTS INTERCONNECTING SAID NOZZLE BODY AND SAID PLATE, A PASTE CYLINDER ASSEMBLY, A CHECK VALVE ASSEMBLY, AN EXTERNAL POWER ACTUATED AIR CYLINDER IN LINE WITH THE INTERNAL PASTE CYLINDER ASSEMBLY, SAID CHECK VALVE ASSEMBLY HAVING AN INTAKE OPENING WITH MEANS FOR RECEIVING HEATED PASTE FROM SAID RESERVOIR, A DISCHARGE OPENING WITH MEANS FOR DELIVERING PASTE TO SAID NOZZLE BODY, AND ALSO HAVING CHECK VALVES RESPONSIVE TO THE PISTON FOR DETERMINING THE DIRECTION OF FLOW OF PASTE AND FOR CUTTING OFF THE FLOW OF PASTE TO PRIME THE APPLICATOR FOR THE NEXT APPLICATION OF HEATED PASTE TO SAID FLAPS, SAID PASTE CYLINDER ASSEMBLY HAVING A PISTON ACTUATED BY SAID AIR CYLINDER AND WHICH ON THE PRESSURE STROKE FORCES PASTE FROM THE CYLINDER, THROUGH THE CHECK VALVE ASSEMBLY, DUCTS OF THE NOZZLE BODY TO THE NOZZLE PLATE THEREON, AND ON THE SUCTION STROKE OF SAID PISTON SUCKS PASTE FROM THE RESERVOIR TO THE CHECK VALVE ASSEMBLY AND CYLINDER, HEATING ELEMENTS CONNECTED TO THE BOTTOM OF SAID PASTE RESERVOIR FOR HEATING THE PASTE CONTENTS WITHIN SAID RESERVOIR TO A CONDITION OF EASY FLOW, A THERMOSWITCH TO CONTROL TEMPERATURE OF THE NOZZLE BODY, SENSING MEANS TO ACTUATE SAID POWER ACTUATED AIR CYLINDER, SAID SENSING MEANS BEING RESPONSIVE TO TOUCHING MOVEMENT WITH THE FLAP SURFACES TO WHICH THE PASTE IS APPLIED.