ES435720A1 - Method of degassing a cathode-ray tube prior to sealing - Google Patents
Method of degassing a cathode-ray tube prior to sealingInfo
- Publication number
- ES435720A1 ES435720A1 ES435720A ES435720A ES435720A1 ES 435720 A1 ES435720 A1 ES 435720A1 ES 435720 A ES435720 A ES 435720A ES 435720 A ES435720 A ES 435720A ES 435720 A1 ES435720 A1 ES 435720A1
- Authority
- ES
- Spain
- Prior art keywords
- cathode
- sealing
- ray tube
- degassing
- envelope
- 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.)
- Expired
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
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method for making a cathode-ray tube including baking the envelope and mount assembly and simultaneously exhausting gases from the envelope, and then sealing (tipping off) the exhausted envelope. During the baking and exhausting of the tube, the following steps are carried out first sequentially and then simultaneously: (a) applying radio-frequency energy to the mount assembly and (b) passing electric current through the cathode heater.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US454158A US3922049A (en) | 1974-03-25 | 1974-03-25 | Method of degassing a cathode-ray tube prior to sealing |
Publications (1)
Publication Number | Publication Date |
---|---|
ES435720A1 true ES435720A1 (en) | 1976-12-16 |
Family
ID=23803543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES435720A Expired ES435720A1 (en) | 1974-03-25 | 1975-03-18 | Method of degassing a cathode-ray tube prior to sealing |
Country Status (15)
Country | Link |
---|---|
US (1) | US3922049A (en) |
JP (1) | JPS555810B2 (en) |
BE (1) | BE827021A (en) |
BR (1) | BR7501624A (en) |
CA (1) | CA1022227A (en) |
DE (1) | DE2512906C3 (en) |
ES (1) | ES435720A1 (en) |
FR (1) | FR2273365B1 (en) |
GB (1) | GB1489644A (en) |
IT (1) | IT1034121B (en) |
MX (1) | MX2991E (en) |
NL (1) | NL7503481A (en) |
PL (1) | PL97861B1 (en) |
SU (1) | SU663335A3 (en) |
ZA (1) | ZA751834B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54111750A (en) * | 1978-02-22 | 1979-09-01 | Hitachi Ltd | Manufacture for cathode ray tube |
DE2941422A1 (en) * | 1979-10-12 | 1981-04-23 | Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen | Evacuation procedure for vacuum tubes - placing in HV electric oven, operating vacuum pump, and cleaning contacts by electrical discharge |
US4335926A (en) * | 1980-03-26 | 1982-06-22 | Rca Corporation | Method for vaporizing getter material in a succession of cathode-ray tubes |
US4410310A (en) * | 1981-04-23 | 1983-10-18 | Rca Corporation | Degassing a CRT with modified RF heating of the mount assembly thereof |
US4406637A (en) * | 1981-07-02 | 1983-09-27 | Rca Corporation | Processing the mount assembly of a CRT to suppress afterglow |
JPS6230769U (en) * | 1985-08-09 | 1987-02-24 | ||
DE3625803A1 (en) * | 1986-07-30 | 1988-02-04 | Ifr Ingenieurbuero Fuer Regelu | Method for evacuating the atmosphere from vacuum vessels, especially from cathode ray tubes or television tubes, and an installation for carrying out the method |
JPS63198240A (en) * | 1987-02-10 | 1988-08-16 | Sony Corp | Manufacture of resistor |
JPH01289049A (en) * | 1988-05-17 | 1989-11-21 | Toshiba Corp | Manufacture of cathode ray tube |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2532315A (en) * | 1949-04-02 | 1950-12-05 | Eastman Kodak Co | Apparatus and process for evacuating electronic tubes and the like |
US3115732A (en) * | 1961-09-26 | 1963-12-31 | Rca Corp | Apparatus for processing cathode ray tubes |
US3441333A (en) * | 1967-09-26 | 1969-04-29 | Nat Video Corp | Method of manufacturing cathode ray tube |
-
1974
- 1974-03-25 US US454158A patent/US3922049A/en not_active Expired - Lifetime
-
1975
- 1975-03-03 MX MX100146U patent/MX2991E/en unknown
- 1975-03-05 CA CA221,486A patent/CA1022227A/en not_active Expired
- 1975-03-07 IT IT21066/75A patent/IT1034121B/en active
- 1975-03-18 ES ES435720A patent/ES435720A1/en not_active Expired
- 1975-03-19 BR BR1624/75A patent/BR7501624A/en unknown
- 1975-03-19 FR FR7508530A patent/FR2273365B1/fr not_active Expired
- 1975-03-20 PL PL1975178945A patent/PL97861B1/en unknown
- 1975-03-21 BE BE154624A patent/BE827021A/en unknown
- 1975-03-21 GB GB11898/75A patent/GB1489644A/en not_active Expired
- 1975-03-24 NL NL7503481A patent/NL7503481A/en not_active Application Discontinuation
- 1975-03-24 DE DE2512906A patent/DE2512906C3/en not_active Expired
- 1975-03-24 ZA ZA00751834A patent/ZA751834B/en unknown
- 1975-03-25 SU SU752117531A patent/SU663335A3/en active
- 1975-03-25 JP JP3666875A patent/JPS555810B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2512906A1 (en) | 1975-10-09 |
BE827021A (en) | 1975-07-16 |
CA1022227A (en) | 1977-12-06 |
AU7925775A (en) | 1976-09-23 |
BR7501624A (en) | 1975-12-23 |
FR2273365B1 (en) | 1978-12-29 |
DE2512906C3 (en) | 1984-10-18 |
JPS50131452A (en) | 1975-10-17 |
GB1489644A (en) | 1977-10-26 |
FR2273365A1 (en) | 1975-12-26 |
ZA751834B (en) | 1976-02-25 |
JPS555810B2 (en) | 1980-02-09 |
NL7503481A (en) | 1975-09-29 |
IT1034121B (en) | 1979-09-10 |
DE2512906B2 (en) | 1977-08-11 |
MX2991E (en) | 1980-01-23 |
SU663335A3 (en) | 1979-05-15 |
PL97861B1 (en) | 1978-03-30 |
US3922049A (en) | 1975-11-25 |
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