Title:
MASK SUPPORT BLADE STRUCTURE HAVING AN INSERT FOR A CRT
Document Type and Number:
WIPO Patent Application WO2003017315
Kind Code:
A3
Abstract:
The present invention provides an improved support blade structure (40) for use on a tension mask frame assembly (10). The support blade structure (40) is formed of a material having a first coefficient of thermal expansion and includes fastening portions (51) and an insert member (60) connected at a generally central location to the support blade structure (40). The insert member (60) is formed of a material having a second coefficient of thermal expansion and has a plurality of apertures (62,64) extending in a row along its length. The aperature (62, 64) are dimensioned to be larger than the fastening portions (51) passing therethrough to loosely connect the insert member (60) to the support blade structure (40). This allows the insert member (60) to be connected at the center while it's ends are free to slide relative to the support blade structure (40) during thermal cycling.
Inventors:
BUCHER ALAN WEIR (US)
Application Number:
PCT/US2002/017629
Publication Date:
October 23, 2003
Filing Date:
June 04, 2002
Export Citation:
Assignee:
THOMSON LICENSING SA (FR)
BUCHER ALAN WEIR (US)
BUCHER ALAN WEIR (US)
International Classes:
H01J29/07; (IPC1-7): H01J29/07
Domestic Patent References:
| WO2002059929A2 | 2002-08-01 | |||
| WO2000033348A1 | 2000-06-08 | |||
| WO2001048784A1 | 2001-07-05 |
Foreign References:
| US6246164B1 | 2001-06-12 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 182 (E - 131) 18 September 1982 (1982-09-18)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 182 (E - 131) 18 September 1982 (1982-09-18)
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