Vacuum pressing of glass doublets

Glass manufacturing – Processes – Reshaping or surface deformation of glass preform

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Details

65111, 65273, 294 641, 294 65, B65H 308

Patent

active

046611398

ABSTRACT:
A pair of heat softened overlaying glass sheets are held by vacuum against an apertured engaging surface of a vacuum holder. The overlaying glass sheets can be shaped before, during, or after being held by the vacuum holder.

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