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US 2006/0191292 A1Published application
Tempering bent glass sheets
AssigneePilkington plc
InventorGiovanni Carlomagno
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AssigneePilkington plc
InventorGiovanni Carlomagno
Estimating the term…
An apparatus for tempering a bent glass sheet is disclosed. The apparatus comprises means for conveying the sheet through the apparatus and a pair of blastheads for quenching the sheet with quench gas. Each blasthead comprises a plurality of spaced elongate plenums for supplying quench gas to an array of quench nozzles, the nozzles being mutually inclined to provide diverging jets of quench gas. The plenums extend transversely to the direction of conveyance of the sheet, and the array of nozzles is curved in at least one direction. The array may comprise rows of nozzles extending along lines which are curved in the direction of elongation of the plenums; preferably the curvature of the rows matches the average local curvature of the bent glass sheet in the corresponding direction. Also disclosed is a production line incorporating the apparatus.
An apparatus for tempering a bent glass sheet, comprising a means of conveying the sheet along a predetermined path through the apparatus, and a pair of blastheads for quenching the sheet with jets of quench gas, the blastheads comprising upper and lower blastheads arranged in opposed relationship above and below the predetermined path, each blasthead comprising a plurality of spaced elongate plenums for supplying quench gas to an array of quench nozzles from which the jets of quench gas issue, the length of the quench nozzles exceeding their diameter, and the quench nozzles of each plenum being mutually inclined to provide diverging jets of quench gas, wherein the plenums extend transversely to the direction of conveyance of the bent glass sheet and the array of quench nozzles is curved in at least one direction.
Dependencies are inferred from the claim text.