EP 0187576 B1 19890517 - PROCESS AND APPARATUS FOR DETECTING THE VAPORIZATION OF GETTER MATERIAL DURING THE MANUFACTURE OF A CATHODE RAY TUBE, ESPECIALLY FOR TELEVISION
Title (en)
PROCESS AND APPARATUS FOR DETECTING THE VAPORIZATION OF GETTER MATERIAL DURING THE MANUFACTURE OF A CATHODE RAY TUBE, ESPECIALLY FOR TELEVISION
Publication
Application
Priority
FR 8418777 A 19841207
Abstract (en)
[origin: US4668203A] A method for checking the evaporation of a pellet of getter material such as barium on the walls of the envelope of a cathode-ray tube during manufacture. The pressure within the cathode-ray tube is measured during the operation involving stabilization of the cathode material by measuring the positive-ion charge within the tube.
IPC 1-7
IPC 8 full level
H01J 7/18 (2006.01); H01J 9/39 (2006.01); H01J 9/42 (2006.01); H01J 9/44 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AT DE GB IT NL
DOCDB simple family (publication)
US 4668203 A 19870526; AT E43203 T1 19890615; DE 3570323 D1 19890622; EP 0187576 A1 19860716; EP 0187576 B1 19890517; FR 2574590 A1 19860613; FR 2574590 B1 19880513; HK 102690 A 19901214; IN 166685 B 19900630; JP S61138434 A 19860625; SG 78190 G 19910118
DOCDB simple family (application)
US 80459785 A 19851204; AT 85402415 T 19851204; DE 3570323 T 19851204; EP 85402415 A 19851204; FR 8418777 A 19841207; HK 102690 A 19901206; IN 510DE1986 A 19860610; JP 27484585 A 19851206; SG 78190 A 19900925