Shaping glass sheets by drop forming with differential vacuum re

Details Shaping glass sheets by drop forming with differential vacuum re Shaping glass sheets by drop forming with differential vacuum re

1979-05-21

1980-10-21

Kellogg, Arthur D.

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65104, 65107, 65268, 65273, C03B 2302

Patent

active

042291992

ABSTRACT:
In a drop forming process for shaping glass sheets, wherein a glass sheet is dropped from a flat vacuum platen onto a shaping mold, the final curvature of the glass is controlled by releasing a portion of the glass sheet from the platen prior to releasing the remainder of the glass sheet.

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