Apparatus and method for bending glass sheets

Details Apparatus and method for bending glass sheets Apparatus and method for bending glass sheets

2007-07-10

2007-07-10

Lopez, Carlos (Department: 1731)

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

C065S106000, C065S107000, C065S287000, C065S289000, C065S290000, C065S291000

Reexamination Certificate

active

10706884

ABSTRACT:
An apparatus for shaping heat softened glass sheets includes an upper mold having a full surface press face with a shaping surface generally contoured to the desired curvature of the sheets; a support device to support the sheets below the upper mold; a shaping rail having an upper sheet supporting surface that supports selected peripheral portions of the sheets, the sheet supporting surface having a profile corresponding to desired elevational contours of the selected peripheral portions of the sheets and complimenting corresponding portions of the upper mold shaping surface; a chamber positioned below the sheets; a moving device for moving the upper mold and the shaping rail relative to each other so as to press at least a periphery of the sheets against the upper mold shaping surface, and a connector to direct pressurized gas into the chamber to urge the sheets towards the upper mold press face.

REFERENCES:
patent: 3600150 (1971-08-01), Rougeux
patent: 4265650 (1981-05-01), Reese et al.
patent: 4285715 (1981-08-01), Frank
patent: 4859225 (1989-08-01), Kuster et al.
patent: 4983205 (1991-01-01), Kuster et al.
patent: 5992178 (1999-11-01), Kuster
patent: 37 15 151 (1988-11-01), None
patent: 0 838 438 (1998-04-01), None
patent: 93/01140 (1993-01-01), None
International Search Report mailed May 14, 2004.
U.S. Appl. No. 60/438,877, filed Jan. 9, 2003.

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