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US 4,711,655 AGranted
Adjustable quench for tempering a glass sheet
AssigneePPG Industries, Inc.
InventorStephen J. Schultz
Life of this patent
Estimating the term…
Abstract
An adjustable quench for tempering hot glass sheets of varying transverse configurations, having overlapping members that seal a flexible nozzle assembly as it changes configurations. Nozzles extend from the flexible nozzle assembly towards the shaped glass sheet to be cooled such that the quenching surface formed by the head portions of the nozzles generally parallel the major surfaces of the shaped glass sheet. Each individual flexible nozzle assembly is connected to a common drive that can simultaneously flex all the nozzle assemblies.
Claims26
An apparatus for cooling a shaped glass sheet comprising:
- a nozzle box;
- a plurality of overlapping covers each having center portions overlying a flexible support and opposing leg portions extending along walls of said nozzle box such that said flexible support and covers are slidably engaged with said nozzle box to seal said box;
- a plurality of nozzles extending from said flexible support, through openings in said center portions of said covers towards a major surface of said glass sheet wherein nozzle portions adjacent said major surface form a quench surface;
- and
- means to adjustably bend said flexible support so as to modify the curvature of said quench surface formed by said nozzles.
2 more elements
Dependencies are inferred from the claim text.