A material dispenser having a dispensing member configured to dispense a line of the material along a path in a downstream direction, and a cutting member having a cutting edge extending generally downstream with respect to the path. The cutting member having a convex shape across the path, such that the cutting edge engages and sequentially initiates cuts through the line of material when the line of material is pulled against the cutting member, thereby minimize cutting forces.

A material dispenser having a dispensing member configured to dispense a line of the material along a path in a downstream direction, and a cutting member having a cutting edge extending generally downstream with respect to the path. The cutting member having a convex shape across the path, such that the cutting edge engages and sequentially initiates cuts through the line of material when the line of material is pulled against the cutting member, thereby minimize cutting forces.

A material dispenser having a dispensing member configured to dispense a line of the material along a path in a downstream direction, and a cutting member having a cutting edge extending generally downstream with respect to the path. The cutting member having a convex shape across the path, such that the cutting edge engages and sequentially initiates cuts through the line of material when the line of material is pulled against the cutting member, thereby minimize cutting forces.

A cutter assembly suitable for cutting BOPP adhesive tape and a tape dispenser incorporating the same. The cutter assembly has a row of plastic teeth where each tooth includes left and right front and rear faces, each face being disposed on a different plane, and where the planes intersect each other at the tip of the tooth. A front edge extends between the left and right front faces; a rear edge extends between the left and right rear faces; a left side edge extends between the right front and rear faces; and a right side edge extends between the left front face and the right rear face. The various edges are set at particular angles relative to each other. A protrusion for supporting the tape is provided rearwardly of the teeth and a braking mechanism is also provided on the dispenser.

A method for forming a hole in a glass or glass-ceramic sheets includes scoring a major surface of a glass or glass-ceramic sheet to define the hole, placing the sheet on receiving surface of a mount where a cavity is formed in the receiving surface such that a peripheral edge of the cavity is positioned external to the area bounded by the first score, and fracturing the sheet along the first score to break away the portion of the sheet defined by the first score, wherein the broken away portion of the sheet is contained within the cavity.

A cutter assembly suitable for cutting BOPP adhesive tape and a tape dispenser incorporating the same. The cutter assembly has a row of plastic teeth where each tooth includes left and right front and rear faces, each face being disposed on a different plane, and where the planes intersect each other at the tip of the tooth. A front edge extends between the left and right front faces; a rear edge extends between the left and right rear faces; a left side edge extends between the right front and rear faces; and a right side edge extends between the left front face and the right rear face. The various edges are set at particular angles relative to each other. A protrusion for supporting the tape is provided rearwardly of the teeth and a braking mechanism is also provided on the dispenser.

The disclosure provides a method for forming a hole in a glass or glass-ceramic sheets. The method includes scoring a major surface of a glass or glass-ceramic sheet to define the hole, placing the sheet on a cavity-containing receiving surface such that a peripheral edge of the cavity is positioned external to the area bounded by the first score, and fracturing the sheet along the score to break away the portion of the sheet defined by the first score. The method allows for the formation of large openings in thin glass sheets where the mother sheet is not broken or damaged by the formation of the opening.

A material dispenser having a dispensing member configured to dispense a line of the material along a path in a downstream direction, and a cutting member having a cutting edge extending generally downstream with respect to the path. The cutting member having a convex shape across the path, such that the cutting edge engages and sequentially initiates cuts through the line of material when the line of material is pulled against the cutting member, thereby minimize cutting forces.