Extended surface pressing mold

Details Extended surface pressing mold Extended surface pressing mold

C - Chemistry, Metallurgy

03

B

49/35

C03B 23/03 (2006.01)

Patent

CA 1283294

ABSTRACT An extended surface pressing mold for a horizontal press bending arrangement. The lower mold provides a glass sheet engaging surface having a first portion which complements and generally parallels a first portion of an upper sheet engaging surface of an aligned upper mold, a wing portion which extends from the first portion of lower mold and is nonparallel to a corresponding second aligned portion of the sheet engaging surface of the upper mold, and a ring portion positioned outwardly from the wing portion and generally complementing a third aligned portion of the upper sheet engaging surface of the upper mold near a portion of the perimeter of the glass sheet. The ring portion moves from a first position wherein the ring portion is in a non-engaging position relative to the heat softened glass sheet to a second position wherein the ring portion contacts and engages a perimeter portion of the heat softened glass sheet to press the perimeter portion against the third portion of the upper mold.

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