EP 0000268 B1 19810527 - METHOD FOR THERMALLY TOUGHENING GLASS SHEETS, IN PARTICULAR TO BE USED AS MOTOR VEHICLE SIDE OR REAR WINDOWS
Title (en)
METHOD FOR THERMALLY TOUGHENING GLASS SHEETS, IN PARTICULAR TO BE USED AS MOTOR VEHICLE SIDE OR REAR WINDOWS
Publication
Application
Priority
GB 2636077 A 19770623
Abstract (en)
[origin: EP0000268A1] Method for thermally toughening glass sheets and glass sheets obtained by this method, in particular to be used as motor vehicle side or rear windows. <??>A method of thermally toughening glass sheets for use as motor vehicle side or rear windows so that the glass sheets produced conform to regulations specifying fracture requirements. <??>The glass sheets are advanced through a quenching station for gas quenching. The advance of the glass sheet relative to the flow of quenching gas is terminated for a predetermined time whereby localised gas flows are applied to the glass sheet. The method induces in the glass sheet a distribution of regions of more highly toughened glass interspersed with regions of lesser toughened glass.
IPC 1-7
IPC 8 full level
C03B 27/044 (2006.01); C03B 27/048 (2006.01); C03B 27/052 (2006.01)
CPC (source: EP US)
C03B 27/0404 (2013.01 - EP US); C03B 27/0413 (2013.01 - EP US); C03B 2225/02 (2013.01 - EP US); Y10T 428/315 (2015.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0000268 A1 19790110; EP 0000268 B1 19810527; DE 2860735 D1 19810903; IE 47501 B1 19840404; IE 781228 L 19781223; IT 1159745 B 19870304; IT 7868471 A0 19780622; JP S5433515 A 19790312; JP S6138132 B2 19860827; US 4178414 A 19791211
DOCDB simple family (application)
EP 78300071 A 19780623; DE 2860735 T 19780623; IE 122878 A 19780619; IT 6847178 A 19780622; JP 7555578 A 19780623; US 91655778 A 19780619