Furnace and method using electric resistance and forced convection for heating glass sheets
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United States of America Patent
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N/A
Issued Date -
Dec 2, 2004
app pub date -
May 28, 2003
filing date -
May 28, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A furnace (12) and a method for heating roll conveyed glass sheets by electric resistance radiant heating and forced convection heating by hot air jets that also entrain hot air within the furnace. A hot air distributing system (86) includes upper and lower arrays (90) of hot air distributors (92) that are constructed to effectively supply the convective heating. The hot air distributors (92) have heat exchangers (96) that heat the pressurized air that provides the hot air jets. The heating can be performed on both uncoated and coated glass sheets and furnace (12) conveys the glass sheets either in an oscillating manner or a continuous one direction manner during the heating.
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