Method and apparatus for making a glass sheet

Details Method and apparatus for making a glass sheet Method and apparatus for making a glass sheet

2006-04-17

2008-08-12

Griffin, Steven P. (Department: 1791)

Glass manufacturing

Means drawing sheet from bath

With width maintaining and/or lateral stretching means

C065S193000, C065S201000, C065S258000

Reexamination Certificate

active

07409839

ABSTRACT:
In the formation of sheet glass by the overflow downdraw process, the width of usable sheet glass is maximized by downwardly flowing edge portions of the sheet over web-like members and thereafter over extensions which intersect with and are downwardly inclined relative to the web-like members to thin edge portions of the glass flow and maintain sheet width. The extension members are preferably removably attached to the web-like members, greatly facilitating replacement of the more easily damaged extension members.

REFERENCES:
patent: 3451798 (1969-06-01), Simon
patent: 3537834 (1970-11-01), Simon
patent: 3589887 (1971-06-01), Ward et al.
patent: 4214886 (1980-07-01), Shay et al.
patent: 2004/0055338 (2004-03-01), Helfinstine et al.
patent: 2005/0050923 (2005-03-01), Grzesik et al.
patent: 2004203691 (2004-07-01), None
patent: 2004284843 (2004-10-01), None

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