Method of refurbishing used hollow cylindrical core members...

Details Method of refurbishing used hollow cylindrical core members... Method of refurbishing used hollow cylindrical core members...

B - Operations, Transporting

31

C

B31C 3/00 (2006.01) B31C 5/00 (2006.01)

Patent

CA 2523867

A method of refurbishing a used hollow cylindrical core member of paperboard material for a roll of paper or other sheet material, includes removing a predetermined thickness of paperboard material from the outer surface of the core member to reduce the outside diameter thereof by an amount in the range of from about 0.002 to about 0.01 inches. A layer of paper with a thickness in the range of from about 0.002 to about 0.01 inches is then secured around the core member of reduced diameter, with the axially extending edges of the paper layer overlapping.

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