Glass sheet heat treated by opposed burners

Details Glass sheet heat treated by opposed burners Glass sheet heat treated by opposed burners

1989-01-09

1990-02-27

Kellogg, Arthur

Stock material or miscellaneous articles

Composite

Of quartz or glass

65104, 65119, 65273, 65350, 431158, 431173, C03B 2904

Patent

active

049045334

ABSTRACT:
A gas burner (20) disclosed has general utility but has particular utility when utilized in a closely spaced relationship to roller conveyed glass sheets to provide forced convection heating. The burner (20) includes a cobbustion member (38) in which gas and air are introduced in a tangential relationship with respect to its inner surface to provide a swirling motion that mixes the gas with the air for combustion prior to discharge through outlets (46) to provide the forced convection heating. A glass sheet heated by this gas burner forced convection on the roller conveyor and subsequently cooled has reduced roll-wave distortion and reduced edge distortion as compared to radiantly heated glass sheets.

REFERENCES:
patent: 3223507 (1965-12-01), Thomas
patent: 3293015 (1966-12-01), Fredley et al.
patent: 3402038 (1968-09-01), Hordis

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