Patent ID: 7849770

Claim:
A method for cutting a sheet of film, comprising: (a) feeding the film into a first roller pair and onto a shear bar having a plurality of teeth, with the roller pair including a first roller and a second roller parallel to and engaging the first roller, with the first roller including a plurality of axially spaced, parallel relief grooves; (b) cutting the film between the shear bar with the plurality of teeth and a rotating blade with a plurality of teeth intermeshing with the shear bar teeth, with the film located intermediate the shear deck and the first roller and the rotating blade, with the shear deck located intermediate the rotating blade and the roller pair, wherein cutting the film creates a leading edge of the film; and (c) directing the leading edge of the film onto a discharge deck after the teeth of the rotating blade intermesh with the teeth of the shear deck using a plurality of streams of air aligned with the plurality of axially spaced, parallel relief grooves.