Flexible ring mold and method of use

Details Flexible ring mold and method of use Flexible ring mold and method of use

1988-01-04

1989-05-16

Kellogg, Arthur

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65273, 65287, C03B 2303

Patent

active

048306509

ABSTRACT:
A heat softened glass sheet is shaped between a contoured upper mold and a flexible lower ring mold. The flexible shaping surface of the lower mold has a generally flat surface configuration as it initially contacts and lifts the peripheral portions of the glass sheet off a series of conveying rolls. The lower mold continues to bias the glass sheet against the upper mold and deforms to substantially compliment a corresponding peripheral portion of the contoured upper mold.

REFERENCES:
patent: 3459526 (1969-08-01), Stickel et al.
patent: 3479540 (1969-11-01), Ritter, Jr. et al.
patent: 3527589 (1970-09-01), Ritter, Jr. et al.
patent: 4272274 (1981-06-01), Frank et al.
patent: 4579577 (1986-04-01), Claassen

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