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US 8,146,386 B2Granted
Constant force scoring device and method for using same
AssigneeCorning Incorporated
InventorsMohamed Dahroug, Scott Winfield Deming, Michael Albert Joseph, II, Thomas Achille Yorio, Naiyue Zhou
Life of this patent
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Abstract
A scoring device is described herein that applies a constant force while scoring a piece of material so that there is a consistent score quality (or vent depth) within the scored piece of material. In one embodiment, the piece of material is a bowed shaped glass sheet that is supported by a conformable nosing device which has been configured to have a bowed shape that substantially matches the bowed shape of the glass sheet.
Claims7
A method for producing a glass sheet, said method comprising the steps of:
- melting batch materials to form molten glass and processing the molten glass to form the glass sheet;
- drawing the glass sheet using a fusion draw machine;
- routing the glass sheet along a nosing device;
- and scoring the glass sheet using a scoring device comprising a score wheel, a first linear motor/actuator configured to move said score wheel in an X-direction along a side of the glass sheet, a second linear motor/actuator configured to move said score wheel in a Y-direction towards the side of the glass sheet, a first actuator and a ranging sensor, the scoring comprising:
- obtaining positional information from the ranging sensor about a location of the side of the glass sheet;
- operating said second linear motor/actuator to move said first actuator and said score wheel in the Y-direction using said positional information from said ranging sensor;
- operating said first actuator to move said score wheel relative to said second linear motor/actuator further in the Y-direction;
- and
- wherein said score wheel applies a constant force to the side of the glass sheet during the scoring.
6 more elements
Dependencies are inferred from the claim text.