Deformable vacuum holder used to shape glass sheets

Details Deformable vacuum holder used to shape glass sheets Deformable vacuum holder used to shape glass sheets

C - Chemistry, Metallurgy

03

B

269/1, 294/2, 49

C03B 23/035 (2006.01) C03B 35/14 (2006.01)

Patent

CA 1199795

ABSTRACT A deformable vacuum holder having a glass facing wall of flexible sheet material subject to local distortion for shaping heat-softened mate- rial, such as glass sheets, has a deformable sheet of insulator material attached mechanically to said glass facing wall for engaging the flexible glass facing sheet wall of the vacuum holder. The deformable sheet has a smooth surface less subject to distortion than said glass facing wall fac- ing the engaged glass sheet surface to avoid having scratches and other surface irregularities of the glass facing wall mar the vision area of the shaped glass sheet and is mechanically supported against the flexible sheet wall beyond the margin of the engaged glass sheet instead of being adhered to said flexible sheet wall.

429895

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