Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1998-06-02
2000-06-27
Silverman, Stanley S.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 252, 65 254, 65 64, 65104, 65115, 65157, 651822, 65194, 65273, 65287, 65349, 65350, 65351, C03B 1300, C03B 1500, C03B 1700, C03B 1900, C03B 2500
Patent
active
060792272
ABSTRACT:
In a quenching apparatus for quenching a glass sheet that has been heated and bent in a heating furnace, a cooling gas blows onto the glass sheet to provide a distribution of a temperature and/or a distribution of a static pressure in at least one section in the quenching apparatus. The distribution of a temperature provides different temperatures between the both surfaces of the glass sheet, while the distribution of a static pressure is nonuniform in a part of at least one surface of the glass sheet. The distributions can modify a shape of the glass sheet given in the heating furnace so that a degree of freedom in shape for manufacturing a bent and tempered glass sheet by utilizing its self-weight can be improved.
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International Search Report for EP 98 30 4466, Aug. 31, 1998.
International Search Report for EP 98 30 4486, Sep. 14, 1998.
Futagami Toru
Shinozaki Kazushi
Takimura Mamoru
Yabuno Takeshi
Yoshizawa Hideo
Nippon Sheet Glass Co. Ltd.
Ruller Jacqueline A.
Silverman Stanley S.
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