C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
49/7, 49/79
C03B 23/03 (2006.01) C03B 35/14 (2006.01) C03B 35/20 (2006.01)
Patent
CA 1287980
ABSTRACT A press bending apparatus includes a shaping station having an upper mold with a shaping surface having a generally concave downward elevational configuration and a lower mold with an apertured shaping surface complementing the shaping surface of the upper mold. A vacuum shuttle transfers heat softened glass sheets from a heating furnace to the shaping station where it deposits the glass sheets on the lower vacuum mold. The glass sheet is shaped between the molds. A rotating arrangement rotates the lower mold and the shaped glass sheet held thereagainst by vacuum from a first position wherein the shaping surface of the lower mold faces upward to a second position wherein the shaping surface of the lower mold faces downward. The shaped glass sheet is the deposited on a tempering. A rotating arrangement maintains vacuum in the lower mold as the mold rotates.
553221
Claassen George Richard
Fecik Michael Timothy
Frank Robert George
Schultz Stephen Jeffrey
Waterloo Thomas Lee
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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