Method and apparatus for bending and tempering a glass sheet

Details Method and apparatus for bending and tempering a glass sheet Method and apparatus for bending and tempering a glass sheet

1992-09-03

1994-08-23

Woodard, Joye L.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65106, 651822, 65268, 65273, C03B 2303, C03B 23035

Patent

active

053403754

ABSTRACT:
The invention relates to a method and apparatus for bending and tempering a glass sheet. From a preheating furnace a glass sheet is advanced into a positioning and bending station supported by a gas bed between the stations. In the positioning and bending station the glass sheet is lifted by a ring mold from a gas bed and the glass sheet is heated for gravitational bending to close to a final profile. The glass sheet is pressed to its final profile or shape by an overhead press plate, which also serves as a vacuum pickup for carrying the bent glass sheet into a station for heating for tempering. After tempering, the glass sheet is advanced into a quenching station.

REFERENCES:
patent: 3468645 (1969-09-01), McMaster et al.

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