Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1977-01-03
1977-11-01
Kellogg, Arthur D.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65103, 65273, 65288, 65289, C03B 2302
Patent
active
040563790
ABSTRACT:
Heat-softened glass sheets may have sharp bends imparted thereto by pressing between complementary molds when preceded by localized heating along the intended line of the sharp bend. The localized heat is applied along the line by means of electrical resistance heating through the glass immediately prior to the pressing step.
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Gibson Kenneth A.
Kelly Joseph B.
Kellogg Arthur D.
Millman Dennis G.
PPG Industries Inc.
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