Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Charles J. Machery0
Date of Patent
June 7, 2005
0Patent Application Number
103429190
Date Filed
January 15, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention provides a paperboard with an improved score line, the method for making the improved score line, and the apparatus for imparting the improved score line. The score line makes the process of folding a flat paperboard into a corner an easier and more consistent process. The score is a V-shaped groove fashioned from a bar score line flanked by two parallel slit cut lines. The method for creating the score line includes utilizing different scoring hubs for bar scoring and slit scoring the paperboard. The apparatus for creating the bar score is a four shaft slitter-scorer having multiple shafts in series, wherein each shaft has at least one hub for slit scoring, bar scoring or supporting the paperboard.
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