Cutter blade for tearing sheet materials

B - Operations – Transporting – 26 – F

Patent

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B26F 3/02 (2006.01) B65D 83/08 (2006.01) B65H 35/00 (2006.01)

Patent

CA 2278284

A blade (40) comprises a blade body and a plurality of individual teeth (50) extending outwardly from the blade body. The teeth (50) each have a finite tooth radius (R) and at least one tooth parameter selected from the group of optimized tooth pa- rameters consisting of a tooth radius less than about 0.005 inches, a tooth pitch of less than about 0.005 inches, and a tooth thickness of less than about 0.006 inches. Severing blades in accordance with the present inven- tion may be affixed to and utilized in combination with a carton (10) or con- tainer of generally conventional de- sign for containing and dispensing a sheet material (20) from a continuous web or utilized independently.

Lame (40) composée d'un corps de lame et d'une pluralité de dents (50) individuelles dirigées vers l'extérieur du corps de lame. Les dents (50) ont chacune un rayon fini (R) et au moins un paramètre sélectionné dans un groupe de paramètres optimisés pour les dents, consistant en un rayon de dent inférieur à environ 0,005 pouce, un écartement inférieur à environ 0,005 pouce et une épaisseur de dent inférieure à environ 0,006 pouce. De telles lames de coupe peuvent être fixées sur un carton (10) ou un récipient de conception sensiblement classique servant à contenir et distribuer un matériau en feuille (20) provenant d'une bande continue, et utilisées en combinaison avec un tel carton, ou bien être utilisées de manière indépendante.

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