Method and apparatus for heating glass panels in a tempering...

Details Method and apparatus for heating glass panels in a tempering... Method and apparatus for heating glass panels in a tempering...

2005-01-25

2005-01-25

Vincent, Sean (Department: 1731)

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

C065S115000, C065S119000, C065S161000, C065S162000, C065S349000, C065S350000, C065S370100

Reexamination Certificate

active

06845633

ABSTRACT:
In a method and an apparatus for heating glass panels in a tempering furnace equipped with rollers, glass panels are carried on a conveyor defined by rollers into a tempering furnace for the duration of a heating cycle, followed by carrying the glass panels into a tempering station. The glass panels are heated in the tempering furnace by bottom- and top-heating radiation elements as well as by bottom- and top-heating convection elements through which convection air is supplied to the tempering furnace. The glass panels' bottom side is heated by the bottom-heating convection elements, which are arranged lengthwise along the furnace and define convection heating zones side by side in a lateral direction of the tempering furnace. Thus, convection heating effects of the convection heating zones can be altered relative to each other for profiling the heat transfer coefficient in a lateral direction of the furnace.

REFERENCES:
patent: 4336442 (1982-06-01), Starr
patent: 4505671 (1985-03-01), McMaster
patent: 4824464 (1989-04-01), Perin et al.
patent: 4957532 (1990-09-01), Jacobson et al.
patent: 5122180 (1992-06-01), Mathivat et al.
patent: 5620492 (1997-04-01), Land
patent: 5951734 (1999-09-01), Friedel et al.
patent: 9801398 (1998-01-01), None

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