Title of Invention

METHOD AND APPARATUS FOR PRODUCING A BENT AND TEMPERED THIN GLASS SHEET

Abstract The invention relates to the press bending anti tempering of glass sheets, especially for use as .glazings in vehicles. When the press benliing system (13) is not located in a heated environment such as a furnace (12), it is important to maintain the glass sheets (11) at a sufficiently high temperature for an adequate degree of temper to be achieved on quenching the sheet. The present invention provides a method of bending and tempering a thin glass sheet (11) comprising pressing the substantially horizontal sheet between moulds (61,62) having opposed complementary shaping surfaces (110,130), at least one of said surfaces being heated, and subsequently quenching the surfaces of the sheet characterised in that the heated shaping surface (110) is maintained at a temperature in the range from 200QC to 350QC.
Full Text

Documents:

444-mas-1995 abstract.pdf

444-mas-1995 claims.pdf

444-mas-1995 correspondence others.pdf

444-mas-1995 correspondence po.pdf

444-mas-1995 description (complete).pdf

444-mas-1995 drawings.pdf

444-mas-1995 form-2.pdf

444-mas-1995 form-4.pdf

444-mas-1995 form-6.pdf

444-mas-1995 petitions.pdf

444-mas-1995 power of attorney.pdf


Patent Number 188344
Indian Patent Application Number 444/MAS/1995
PG Journal Number 30/2009
Publication Date 24-Jul-2009
Grant Date 13-Jun-2003
Date of Filing 17-Apr-1995
Name of Patentee FLACHGLAS AKTIENGESELLSCHAFT
Applicant Address SIEMENSTRASSE 1-3, D-90766 FURTH
Inventors:
# Inventor's Name Inventor's Address
1 ALAN CHARLES WOODWARD HIGH BARN, 9 SPRINGPOOL, WINSTANLEY, WIGAN, WN3 6DE
2 HANS-DIETER FUNK SCHUTZENSTRASSE 16, 58452 WITTEN
3 RICHARD A. HERRINGTON 300 MEADOW LANE, WALBRIDGE, OHIO 43465
PCT International Classification Number C03B23/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 9407610.6 1994-04-15 U.K.