Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1995-12-11
1998-12-15
Griffin, Steven P.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65273, 65275, 65287, 65291, 264313, 425394, C03B 1106, C03B 2303
Patent
active
058490566
ABSTRACT:
The present invention provides a shaping mold for shaping heat softenable sheet material which includes a flexible rail having a sheet shaping surface to support a marginal edge portion of a sheet to be shaped and a plurality of controllable actuators secured to the rail and capable of deforming the rail to provide its surface with configurations each having a desired elevational contour. In one particular embodiment of the invention, the shaping rail is a shaping ring having a peripheral configuration which provides generally continuous support about the marginal edge portion of the sheet. A controller is used to control each actuator and deform the sheet shaping surface of the ring from a first configuration having a generally flat elevational contour to a second configuration having an elevational contour that generally corresponds to the final desired contour of the marginal edge portion of the sheet.
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PPG Industries, Inc. U.S. application No. 08/654,321, Robert G. Frank, et al., filed Sep. 14, 1995, entitled "Flexible Press".
Frank Robert G.
Kenton Hobart E.
May Earl L.
Griffin Steven P.
PPG Industries Inc.
Siminerio A. C.
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