EP0426237A3 - Procedure for detecting television picture tubes with insufficient vacuum - Google Patents
Procedure for detecting television picture tubes with insufficient vacuum Download PDFInfo
- Publication number
- EP0426237A3 EP0426237A3 EP19900202833 EP90202833A EP0426237A3 EP 0426237 A3 EP0426237 A3 EP 0426237A3 EP 19900202833 EP19900202833 EP 19900202833 EP 90202833 A EP90202833 A EP 90202833A EP 0426237 A3 EP0426237 A3 EP 0426237A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- procedure
- television picture
- picture tubes
- insufficient vacuum
- detecting television
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/42—Measurement or testing during manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3936015 | 1989-10-28 | ||
DE3936015A DE3936015A1 (en) | 1989-10-28 | 1989-10-28 | METHOD FOR SELECTING TELEVISION TUBES WITH VACUUM TOO LOW |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0426237A2 EP0426237A2 (en) | 1991-05-08 |
EP0426237A3 true EP0426237A3 (en) | 1991-11-21 |
EP0426237B1 EP0426237B1 (en) | 1994-05-18 |
Family
ID=6392473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90202833A Expired - Lifetime EP0426237B1 (en) | 1989-10-28 | 1990-10-24 | Procedure for detecting television picture tubes with insufficient vacuum |
Country Status (4)
Country | Link |
---|---|
US (1) | US5083957A (en) |
EP (1) | EP0426237B1 (en) |
JP (1) | JPH03165422A (en) |
DE (2) | DE3936015A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE142367T1 (en) * | 1992-12-17 | 1996-09-15 | Philips Electronics Nv | METHOD FOR CURING A FILM |
DE19526394A1 (en) * | 1995-07-19 | 1997-01-23 | Siemens Ag | Vacuum detection system for vacuum switch tube |
US6722184B2 (en) | 2001-09-13 | 2004-04-20 | Guide Corporation | Apparatus and method for pressurized oxygen bulb curing and testing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1592364A (en) * | 1921-04-26 | 1926-07-13 | Western Electric Co | Ionization manometer |
US4052776A (en) * | 1976-09-30 | 1977-10-11 | Zenith Radio Corporation | Method of spot-knocking an electron gun assembly in a color television picture tube |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU656126A1 (en) * | 1976-06-23 | 1979-04-05 | Рязанский Радиотехнический Институт | Circuit for measuring pressure in sealed gas-discharge devices |
JPS6273526A (en) * | 1985-09-27 | 1987-04-04 | Hitachi Ltd | Method of measuring sealing gas pressure for fluorescent lamp |
US4720652A (en) * | 1987-01-20 | 1988-01-19 | Cooper Industries, Inc. | Sealed beam headlamp and method for testing its serviceability |
JPS63261649A (en) * | 1987-04-20 | 1988-10-28 | Hitachi Ltd | High-voltage processing method for cathode-ray tube |
-
1989
- 1989-10-28 DE DE3936015A patent/DE3936015A1/en not_active Withdrawn
-
1990
- 1990-10-18 US US07/599,784 patent/US5083957A/en not_active Expired - Lifetime
- 1990-10-24 DE DE59005734T patent/DE59005734D1/en not_active Expired - Fee Related
- 1990-10-24 EP EP90202833A patent/EP0426237B1/en not_active Expired - Lifetime
- 1990-10-25 JP JP2286008A patent/JPH03165422A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1592364A (en) * | 1921-04-26 | 1926-07-13 | Western Electric Co | Ionization manometer |
US4052776A (en) * | 1976-09-30 | 1977-10-11 | Zenith Radio Corporation | Method of spot-knocking an electron gun assembly in a color television picture tube |
Non-Patent Citations (2)
Title |
---|
ELECTRONICS Bd. 37, Nr. 1, 3. Januar 1964, MC.GRAW-HILL NEW YORK Seiten 89 - 91; FRED KOHLER: 'PRODUCTION TECHNIQUES TUBE IS OWN VACUUM GAGE ' * |
PATENT ABSTRACTS OF JAPAN vol. 13, no. 81 (E-719)(3429) 23. Februar 1989 & JP-A-63 261 649 (HITACHI LTD ) 28. Oktober 1988 * |
Also Published As
Publication number | Publication date |
---|---|
US5083957A (en) | 1992-01-28 |
JPH03165422A (en) | 1991-07-17 |
DE3936015A1 (en) | 1991-05-02 |
DE59005734D1 (en) | 1994-06-23 |
EP0426237A2 (en) | 1991-05-08 |
EP0426237B1 (en) | 1994-05-18 |
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Legal Events
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