EP 0436477 A3 19911218 - GETTERING DEVICE AND SYSTEM FOR A CATHODE RAY TUBE
Title (en)
GETTERING DEVICE AND SYSTEM FOR A CATHODE RAY TUBE
Publication
Application
Priority
IT 1901790 A 19900105
Abstract (en)
[origin: EP0436477A2] A gettering system is provided for cathode ray tubes which have a sensitive cathode that can be damaged when nitrogen is released at first switch-on of the cathode. The gettering system consists of a barium getter providing a high capacity for residual gases throughout tube life and a separate titanium getter which provides a film of titanium having a high sorption speed for the nitrogen which is released at first switch-on of the cathode.
IPC 1-7
IPC 8 full level
H01J 7/18 (2006.01); H01J 29/94 (2006.01)
CPC (source: EP KR)
H01J 7/18 (2013.01 - EP); H01J 29/94 (2013.01 - EP KR)
Citation (search report)
- [A] US 3792300 A 19740212 - BENDA D, et al
- [A] WO 8910627 A1 19891102 - GETTERS SPA [IT]
- [A] US 3387908 A 19680611 - MARK FOGELSON
- [A] GB 1221107 A 19710203 - THOMSON CSF [FR]
- [A] GB 2157073 A 19851016 - GETTERS SPA
- [A] PATENT ABSTRACTS OF JAPAN vol. 1, no. 150 (E-77)(7866) December 5, 1977 & JP-A-52 91 364 (HITACHI SEISAKUSHO ) August 1, 1977
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0436477 A2 19910710; EP 0436477 A3 19911218; IT 1237948 B 19930619; IT 9019017 A0 19900105; IT 9019017 A1 19910706; JP H04133250 A 19920507; KR 910014988 A 19910831
DOCDB simple family (application)
EP 90830621 A 19901231; IT 1901790 A 19900105; JP 41528390 A 19901227; KR 900022106 A 19901228