US Pat. No. 10,363,717

METHODS, APPARATUS AND SYSTEMS FOR ESTABLISHING A REGISTERED SCORE, SLIT OR SLOT IN A CORRUGATED BOARD, AND ARTICLES PRODUCED THERE FROM

Scorrboard LLC, Renton, ...

1. A method for creating a registered modification in corrugated board, the method comprising:ascertaining locations of first and second features of a fluted medium in the corrugated board, the fluted medium having a plurality of flutes, each flute having a flute peak, a flute axis, and a flute pitch, wherein the first feature comprises a flute feature on a first one of the plurality of flutes and the second feature comprises a flute feature on a second one of the plurality of flutes;
determining a distance from the first and second features in a direction orthogonal to the flute axis for establishing a location of a first registered modification; and
creating the first registered modification at the established location without penetrating the corrugated board;
determining a distance from the first registered modification in the direction orthogonal to the flute axis for establishing a second location of a second registered modification; and
creating the second registered modification at the second established location without penetrating the corrugated board;
wherein the flute pitch is used to establish the second established location in combination with the location of the first registered modification.