Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1995-10-23
1996-09-17
Czaja, Donald E.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65104, 65268, 65273, C03B 23023
Patent
active
055564445
ABSTRACT:
A glass sheet bending method is performed by apparatus (20) including at least one deformable mold (22) has a linkage (26) that extends between mold members (24) and includes connector links (28) fixed to the mold members and having pivotal connections (32) to each other about axes that extend parallel to the glass sheet throughout the bending, and the linkage also has control links (34) that have pivotal connections (36) about axes that extend perpendicular to the glass sheet throughout the bending as well as having universal connections (38) to each other such that the linkage moves the mold members for bending with a constant radius of curvature. The bending apparatus (20) preferably has a pair of the deformable molds (22,44) that are arranged in lower and upper locations and have respective linkages (26,48) as well as having the mold members (24,46) thereof provided with quench openings (66) through which quenching gas is supplied to quench the bent glass sheet for heat strengthening or tempering. An actuating mechanism (154) of the apparatus is constructed so as to move the linkages (26,48) to perform the bending which may be performed by moving the deformable molds (22,44) toward each other during the bending.
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Colaianni Michael P.
Czaja Donald E.
Glasstech, Inc.
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