Abstract: Apparatus and method for closing and sealing lined taper top cartons wherein the cartons are advanced in a path of travel with their liner mouths open, the end walls of said carton and the opposite ends of the liner being simultaneously deflected inwardly and the front and rear carton walls and the opposite sides of the liner mouth concurrently displaced toward each other to juxtapose the upper edges of the front and rear walls with the liner mouth flattened therebetween, the flattened liner mouth then folded upon itself to form a double thickness mouth, the folded liner mouth and an end closure flap hinged to the carton rear wall then being simultaneously folded over the upper edge of the carton front wall and the folded closure flap secured to the front wall of the carton.

Abstract: Apparatus for automatically closing cartons having self-sealing reclosable top closures adapted, when closed, to lie within the confines of the carton bodies, the end closures having opposing pairs of sealing flaps adapted to be juxtaposed in face-to-face contacting relation, preferably with the mouths of carton liners interposed therebetween, the juxtaposed sealing flaps and liner mouths being displaceable downwardly to close the cartons and thereafter displaceable upwardly to reopen the cartons, the apparatus comprising a series of continuously moving carriages which receive and advance the openended cartons in a path of travel, the cartons being first acted upon by sets of folding fingers which concurrently infold the leading and trailing end closure flaps and the projecting ends of the liners, whereupon sweep means act to juxtapose the opposing pairs of sealing flaps with the liners interposed therebetween.

Abstract: Apparatus and method for heat sealing a moving tubular liner or the like wherein the area of the liner to be sealed is repeatedly contacted by an opposing pair of elongated sealing elements mounted for movement in orbital paths relative to each other and to the liner passing therebetween.