Method and apparatus for producing curved glass sheets

Details Method and apparatus for producing curved glass sheets Method and apparatus for producing curved glass sheets

1991-01-18

1992-06-30

Lindsay, Robert L.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65273, 65287, 65289, C03B 23035

Patent

active

051259478

ABSTRACT:
A method and apparatus for curving a glass sheet is described in which a glass sheet is held by forces of a pneumatic nature against an upper element of dimensions smaller than those of the glass sheet. According to the invention, the parts of the glass sheet projecting beyond the upper element are held against a flexible material, the dimensions of which are greater than those of the glass sheet. The flexible material is interposed between the glass sheet and the upper element, and is secured so that portions of the flexible material which extend beyond the upper element are held in directions tangential to the surface of the upper element in its marginal zones. The invention is applicable, notably, to the production of automobile panes.

REFERENCES:
patent: 3389984 (1968-06-01), Englehart et al.
patent: 3473909 (1969-10-01), Bennett et al.
patent: 3484225 (1969-12-01), Bognar
patent: 4432782 (1984-02-01), Seymour
patent: 4738704 (1988-04-01), Vanaschen et al.
patent: 4764196 (1988-08-01), Boutiev et al.
patent: 4906271 (1990-03-01), D'lribarne et al.
patent: 4983205 (1991-01-01), Kuster

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