Invention Grant
US08474286B2 Overflow downdraw glass forming method and apparatus 有权
溢流下拉玻璃成型方法及装置

Overflow downdraw glass forming method and apparatus
Abstract:
The present invention significantly modifies “The Overflow Process”. It includes a method and apparatus for measuring glass flow rate and maintaining a constant glass flow rate. It also embodies design features and methods that support and stress the forming apparatus in a manner such that the deformation that results from thermal creep is corrected, thus minimizing the effect of the thermal creep on the thickness variation of the glass sheet. The present invention also embodies design features that change the process from a single step (combined flow distribution and cooling) to a two step process; step one being flow distribution and step two being cooling.
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