Title (en)

Method for thermally toughening glass sheets, in particular to be used as motor vehicle side or rear windows.

Title (de)

Verfahren zum thermischen Härten von Glasscheiben insbesondere zur Anwendung als Seiten-und Heckscheiben für Motorfahrzeuge.

Title (fr)

Procédé pour la trempe thermique de plaques de verre en particulier pour être utilisées comme fenêtre latérale ou lunette-arrière d'un véhicule à moteur.

Publication

EP 0000268 A1 19790110 (EN)

Application

EP 78300071 A 19780623

Priority

GB 2636077 A 19770623

Abstract (en)

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

C03B 27/00; B60J 1/08; B60J 1/18

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)

Citation (search report)

• US 2244715 A 19410610 - BERNARD LONG
• US 2042610 A 19360602 - LITTLETON JESSE T
• FR 1510240 A 19680119 - FORD FRANCE
• [P] FR 2342946 A1 19770930 - TRIPLEX SAFETY GLASS CO [GB]
• [A] US 3293015 A 19661220 - FREDLEY JAMES C, et al
• [A] US 3497340 A 19700224 - DENNISON BROOK J, et al
• [A] FR 2316197 A1 19770128 - SAINT GOBAIN [FR]
• [A] GB 1107265 A 19680327 - TRIPLEX SAFETY GLASS CO, et al
• [A] GB 477156 A 19371222 - SAINT GOBAIN
• [A] GB 1039791 A 19660824 - SAINT GOBAIN
• [A] GB 1095284 A 19671213 - TRIPLEX SAFETY GLASS CO, et al

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