Press-bending method and apparatus for bending glass sheets

Details Press-bending method and apparatus for bending glass sheets Press-bending method and apparatus for bending glass sheets

C - Chemistry, Metallurgy

03

B

C03B 23/03 (2006.01) C03B 23/035 (2006.01)

Patent

CA 2095990

(57) Abstract The invention relates to a press- bending method and apparatus for bending glass sheets. The press bending is effected between an upper curved mould surface (12) and a lower ring mould (13). Air is blown through pores included in an upper mould (2) into a space (3) between mould surface (12) and a glass sheet (11), air being vacuumed from the edges of said space for developing in said interspace (3) a negative pressure (P2) capable of bearing a glass sheet (1) in the immediate proximity of mould surface (12), yet without contacting said mould surface (12).

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