Method of press-forming glass

Details Method of press-forming glass Method of press-forming glass

2006-11-14

2006-11-14

Lopez, Carlos (Department: 1731)

Glass manufacturing

Processes

With measuring, sensing, inspecting, indicating, or testing

C065S102000, C065S319000

Reexamination Certificate

active

07134298

ABSTRACT:
An object of the present invention is to provide a press-forming method for glass capable of uniformly heating press dies and a preform and preventing oxidation of the press dies. According to the press-forming method for glass of the present invention, a preform is placed between a pair of press dies in a press-forming chamber and the preform and the press dies are heated in an inert gas atmosphere. After the temperature of the press dies reaches a predetermined value, evacuation of the press-forming chamber is initiated. After the pressure of the press-forming chamber reaches a predetermined value and the temperature of the press-forming chamber are stabilized at a second predetermined value, the preform is press-formed. Preferably, an exhaust rate for evacuating the chamber is limited to a predetermined value or less.

REFERENCES:
patent: 5228894 (1993-07-01), Sato et al.
patent: 5346522 (1994-09-01), Komiyama et al.
patent: 5938807 (1999-08-01), Komiyama et al.
patent: 6003339 (1999-12-01), Morikita
patent: 6370918 (2002-04-01), Fukuyama et al.
patent: 6848274 (2005-02-01), Murakoshi et al.
patent: 2002/0098257 (2002-07-01), Ikeda et al.
patent: 2003/0056545 (2003-03-01), Murakoshi et al.
patent: 01146712 (1989-06-01), None
patent: 01157423 (1989-06-01), None
patent: 02149433 (1990-06-01), None
patent: 04037613 (1992-02-01), None
patent: 05-310434 (1993-11-01), None
patent: 08208243 (1996-08-01), None
patent: 09-030818 (1997-02-01), None
patent: 1998-071587 (1998-10-01), None
Machine translation of JP 07-053221, retrieved from http://www.ipdl.ncipi.go.jp/homepg—e.ipdl on Nov. 3, 2005.
Korean Office Action dated Feb. 16, 2005 for Appln. No. 10-2003-0019165
Japanese Office Action dated May 9, 2006 for Appln. No. 2002-094879.

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