Method and apparatus for severing tubular material around a...

Details Method and apparatus for severing tubular material around a... Method and apparatus for severing tubular material around a...

B - Operations, Transporting

26

D

B26D 1/12 (2006.01) A22C 13/00 (2006.01) A22C 13/02 (2006.01)

Patent

CA 2134726

A method for severing tubular material around a rigid mandrel. The method comprises piercing the film with a knife such that the edge of the knife faces away from the mandrel, rotating the knife about the mandrel in a direction toward the knife edge while cutting the tubular material from inside of the tubular material to the outside of the tubular material and continuing said rotating until the tubular material is completely severed. In a preferred embodiment the tubular material is held stationary from at least the time of said piercing until at least the time that the tubular material is completely severed. In a further preferred embodiment, the tubular material such as a food casing is inflated to provide a space between the tubular material and the mandrel. The invention further includes an apparatus for practicing the method of the invention.

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