Abstract: A cutting assembly for plastic film or other sheet wrapping material dispensers. The cutting assembly comprises a member having a length corresponding to the length of the dispenser box, and a U-shaped cross-section adapted to slip over the free edge of the front panel of the dispenser box. The member has a base web with one leg on the inside of the box and a second leg exposed on the outside of the box. The legs meet the web in curved shoulders, diverge downwardly and outwardly, and have extending flaps at their lower ends which are curved back internally of the U-shaped member to provide retainer edges which project angularly upward and inward of the U-shaped member to resist upward displacement of the member from the panel. The proportions of the inwardly curved flaps and the distance between them are such that there is no possibility of the leg or legs of one cutting blade interlocking with the leg or legs of another cutting blade.

Abstract: A cutting assembly for aluminum foil dispensers. The cutting assembly comprises a member corresponding to the length of the dispenser carton. The member has a U-shaped cross-section adapted to slip over the free edge of the front panel of the dispenser carton having a base web with one leg on the inside of the carton and a second leg exposed on the outside of the carton. The inside leg has an extension which is bent back over the leg and extends the full height of the inside leg to project above the base web of the U-shaped member. The upward extension is serrated with a continuous row of teeth projecting above the base, preferably a depth of 0.020". The outside leg of the member has a flap which is bent back internally of the U-shaped member to provide a retainer strip which projects angularly upward and inward of the U-shaped member to provide a resilient flap which resists upward displacement of the member from the panel.

Abstract: A cutting blade for cutting sheet materials such as plastic film or metal foil is provided. The cutting blade incorporates a row of cutting teeth (50) projecting from a flat surface between the surface's folded edges. The depth of cut of the cutting blade is limited by the height that the cutting teeth project from the flat surface. In addition, by spacing the cutting teeth sufficiently closely together, the cutting teeth provide a bearing surface sufficient to support human skin so that the cutting blade cuts plastic film and metal foil but does not easily puncture human skin.

Abstract: A dispenser carton for continuous-length material, such as plastic film, includes an integral cutting assembly or a cutting assembly on a separate board which may be fitted into operating position during carton use. A deflectable protective guard or shield for the cutting edge of the assembly normally resiliently rests in a protective posture against and overlapping the cutting edge. It is adapted to be temporarily deflected to facilitate normal cutting of the dispensed material and to be spontaneously returned to its protective posture during non-use of the carton. The guard is a relatively stiff flexible tape sandwiched between the cutting edge and its supporting board stock so that the tape may not be readily removed without destroying the function of the cutting edge.

Abstract: A dispenser carton for continuous-length material, such as plastic film, is disclosed. The carton includes an integral cutting assembly or a cutting assembly on a separate board which may be fitted into operating position during carton use. A deflectable protective guard or shield for the cutting edge of the assembly is included, which normally resiliently rests in a protective posture against and overlapping the cutting edge. It is adapted to be temporarily deflected to facilitate normal cutting of the dispensed material and to be spontaneously returned to its protective posture during non-use of the carton. The guard is a relatively stiff flexible tape sandwiched between the cutting edge and its supporting board stock so that the tape may not be readily removed without destroying the function of the cutting edge.