Metal Edge International, Inc.

Armin C Frank

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. The open distance between the inwardly curved flaps is somewhat less than the thickness of the panel, and is substantially less than the width of the web, so that the web of one member cannot become interlocked between the legs of other members. The base web of the blade has a flat medial portion, extending between the legs and supporting the teeth.

Cutting blade for cutting sheet wrapping materials

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. The base web of the panel is flat, extending perpendicularly to the legs with a width of at least seven times the depth of the teeth. The height of the legs is about 1-1/2 times the width of the web.

Cutting blade for cutting sheet materials

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.

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Wyndmoor, PA, United States of America

Armin C Frank