Curving of glass sheets

Details Curving of glass sheets Curving of glass sheets

1987-07-16

1988-08-16

Kellogg, Arthur

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65104, 65107, 65273, 65287, C03B 23023

Patent

active

047641967

ABSTRACT:
Curving of glass sheets by application of said sheets against an upper curving form and possibly subsequently, after the deposit of said sheets onto a lower curving form, by depressing in accordance with said upper form is improved. After the taking up of a sheet of glass by the upper form, a current of hot gas is blown under the glass sheets in order to produce a pneumatic pressing. The process and opportunities enables the manufacture of curved glasses in accordance with complicated shapes and/or with an accentuated curvature but, nevertheless, with a surface free from defects.

REFERENCES:
patent: 3778244 (1973-12-01), Nedelec et al.
patent: 4204854 (1980-05-01), McMaster et al.
patent: 4386952 (1983-06-01), Nitschke
patent: 4514208 (1985-04-01), Nitschke
patent: 4682997 (1987-07-01), Halberschmidt et al.

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