Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1983-10-03
1985-05-14
Kellogg, Arthur
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65273, 65287, 65291, C03B 23035
Patent
active
045169977
ABSTRACT:
A method of deforming a plastic glass sheet from a generally two-dimensional shape into a generally three-dimensional shape at first supports the plastic glass sheet with its two-dimensional upper face juxtaposed underneath the three-dimensional lower face of a vacuum-forming die. The sheet and die are then relatively displaced vertically toward each other so that one portion of the sheet face engages a respective portion of the die face. The two portions are secured together by suction so that the sheet adheres at the one portion of its face to the respective portion of the die face. Finally, the sheet and die are relatively displaced with deformation of the sheet to press the rest of the sheet face and die face together and adhere the faces entirely together by suction. The sheet is supported on a planar conveyor that is rocked about a horizontal axis to engage the faces together. This conveyor and the die can be relatively rocked about a horizontal axis, or even about two transverse horizontal axes.
REFERENCES:
patent: 4229200 (1980-10-01), Seymour
patent: 4277276 (1981-07-01), Kellar
Derner Paul
Eckardt Rudolf
Neuendorf Hans-Christoph
Dubno Herbert
Flachglas Aktiengesellschaft
Kellogg Arthur
Ross Karl F.
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