Global Patent Index - EP 1063304 B1

EP 1063304 B1 2002-09-04 - Masking device for a colour flat screen cathode ray tube comprising a supporting frame for planar mask and planar mask

Title (en)

Masking device for a colour flat screen cathode ray tube comprising a supporting frame for planar mask and planar mask

Title (de)

Maskierungseinrichtung für Flachschirm-Farbbildröhre mit Tragrahmen für Schattenmaske und Schattenmaske

Title (fr)

Dispositif de masquage pour tube cathodique de visualisation en couleur à écran plat, du type comprenant un cadre support pour masque d'ombre tendu et masque d'ombre tendu.

Publication

EP 1063304 B1 (FR)

Application

EP 00401772 A

Priority

FR 9907909 A

Abstract (en)

[origin: EP1063304A1] A device for masking a flat screen color monitor has a mask mounted within and tensioned at ambient temperature by a support. The support is an iron nickel alloy with a thermal expansion coefficient ≤ 5 x 10<-6>/K between 20 - 150 degrees C and an elastic limit Rp0.2 at 20 degrees C ≥ 700 MPa. Independent claims are included for the following: (a) Methods of manufacturing the above device including hardening of the screen at 400 - 800 degrees C. (b) Methods of manufacturing the above device including de-tensioning the screen at 400 - 600 degrees C.

IPC 1-7 (main, further and additional classification)

C21D 6/00; C22C 30/00; C22C 38/08; H01J 29/07

IPC 8 full level (invention and additional information)

C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 30/00 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/44 (2006.01); C22C 38/52 (2006.01); H01J 9/14 (2006.01); H01J 29/02 (2006.01); H01J 29/07 (2006.01)

CPC (invention and additional information)

H01J 29/073 (2013.01); C21D 6/001 (2013.01); C21D 8/0205 (2013.01); C22C 30/00 (2013.01); C22C 38/002 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/44 (2013.01); H01J 2229/0722 (2013.01); Y10T 428/12646 (2013.01); Y10T 428/12653 (2013.01); Y10T 428/12958 (2013.01); Y10T 428/12965 (2013.01); Y10T 428/12972 (2013.01); Y10T 428/12979 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

EP 1063304 A1 20001227; EP 1063304 B1 20020904; AT 223502 T 20020915; BR 0002870 A 20010130; CA 2312415 A1 20001222; CN 1157749 C 20040714; CN 1278105 A 20001227; DE 1063304 T1 20020117; DE 60000389 D1 20021010; DE 60000389 T2 20030109; ES 2181631 T3 20030301; FR 2795431 A1 20001229; FR 2795431 B1 20011207; ID 26429 A 20001228; JP 2001076643 A 20010323; KR 20010007472 A 20010126; PL 340943 A1 20010102; PT 1063304 E 20030131; RU 2000116573 A 20020527; TW 455630 B 20010921; US 6420054 B1 20020716