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US 6,598,427 B1Granted
Device for cooling convex glass sheets
AssigneeSaint-Gobain Glass France
InventorsJean-Pierre Douche, Jean-Marc Petitcollin, Gilles Garnier
Life of this patent
Estimating the term…
Abstract
A device for cooling bent glass sheets running along a roller conveyor. Blowing boxes are inserted between the rollers and have a surface opposite the glass sheet at a distance of less than 30 mm and preferably less than 10 mm. The surface is perforated with several holes through which air is discharged in the direction of the glass sheets.
Claims26
A device for cooling moving glass sheets, comprising:
- a curved concave roller conveyor comprising a plurality of rollers arranged to support and bend a glass sheet being conveyed thereon;
- and
- at least one blowing box having a blowing means for cooling a glass sheet being bent and conveyed by said roller conveyor, said blowing means having a plurality of holes for discharging a cooling gas onto a glass sheet being bent and conveyed by said roller conveyor, said blowing means being arranged between, and relative to, said plurality of rollers such that said plurality of holes are less than 30 mm from a glass sheet being bent and conveyed by said roller conveyor.
A method for cooling glass sheets, comprising the steps of:
- conveying and bending a glass sheet having a thickness of less than about 3 mm on a curved concave roller conveyor comprising a plurality of rollers arranged to support and bend the glass sheet being conveyed thereon;
- and
- cooling the glass sheet being bent and conveyed by said roller conveyor by blowing a cooling gas from a plurality of holes in a blowing part of at least one blowing box, said blowing part being arranged between and relative to said plurality of rollers such that said plurality of holes are less than 30 mm from the glass sheet being bent and conveyed by said roller conveyor.
A device for cooling moving glass sheets, comprising:
- a curved roller conveyor comprising a plurality of rollers arranged to support and bend a glass sheet being conveyed thereon;
- and
- at least one blowing box having a blowing means for cooling a glass sheet being bent and conveyed by said roller conveyor, said blowing means having a plurality of holes for discharging a cooling gas onto a glass sheet being bent and conveyed by said roller conveyor, said blowing means being arranged between, and relative to, said plurality of rollers such that said plurality of holes are less than 30 mm from a glass sheet being bent and conveyed by said roller conveyor.
A method for cooling glass sheets, comprising the steps of
- conveying and bending a glass sheet having a thickness of less than about 3 mm on a curved roller conveyor comprising a plurality of rollers arranged to support and bend the glass sheet being conveyed thereon;
- and
- cooling the glass sheet being bent and conveyed by said roller conveyor by blowing a cooling gas from a plurality of holes in a blowing part of at least one blowing box, said blowing part being arranged between and relative to said plurality of rollers such that said plurality of holes are less than 30 mm from the glass sheet being bent and conveyed by said roller conveyor.
Dependencies are inferred from the claim text.