Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate
2007-09-11
2007-09-11
Paschall, Mark (Department: 3742)
Electric heating
Heating devices
With power supply and voltage or current regulation or...
C219S388000, C034S448000, C034S443000
Reexamination Certificate
active
10547554
ABSTRACT:
To be provided are a heat treatment apparatus having blocking members which block gaps between the side walls of nozzle boxes provided with slit nozzles, whose size in the lengthwise direction is greater than the width of a sheet, and the side walls of a heat treatment chamber, and gas having a uniform velocity fluctuating no more than ±25% in the lengthwise direction of the slit nozzles is blown out of the slit nozzles to subject the sheet to heat treatment, resulting in little unevenness of temperature in the widthwise direction and reduced energy loss, and a heat treatment method using this heat treatment apparatus.
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patent: 4779357 (1988-10-01), Troetscher
patent: 4809446 (1989-03-01), Langer
patent: 5579072 (1996-11-01), Frank et al.
patent: 04-363580 (1992-12-01), None
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patent: 2002-069832 (2002-03-01), None
Mizota Hirotoshi
Morimoto Daisuke
Murakami Tomonari
Okutsu Hajime
Tomobe Hitoshi
Mitsubishi Rayon Co. Ltd.
Paschall Mark
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