Method for forming a glass article possessing an aperture

Details Method for forming a glass article possessing an aperture Method for forming a glass article possessing an aperture

2000-01-31

2000-10-24

Silverman, Stanley S.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 56, 65 67, 65 77, 65 87, 65 97, 65105, 65112, 264154, 264155, C03B 946

Patent

active

061349194

ABSTRACT:
The present invention is directed to an apparatus and method for forming glass article from sheet glass. More specifically the apparatus comprises a mold, a plunger being cooperative alignment with the mold, wherein the mold and the plunger form a cavity exhibiting the shaped of the glass article, an outer trimmer for separating the glass article from the surrounding excess sheet glass, and an inner trimmer for forming the aperture in the glass article, and the method involves forming the aperture during the hot-forming process, therefore eliminating a post-formation step.

REFERENCES:
patent: 1229572 (1917-06-01), Birnzweig
patent: 1290738 (1919-01-01), Groth
patent: 1513756 (1924-11-01), Hancock
patent: 1793603 (1931-02-01), Frederick
patent: 1856319 (1932-05-01), Cooper
patent: 1972789 (1934-09-01), Newkirk
patent: 3484518 (1969-12-01), Ignell
patent: 4104349 (1978-08-01), Hillgenberg
patent: 4328067 (1982-05-01), Cesano

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