MX2991E - IMPROVEMENTS TO A METHOD FOR MANUFACTURING CATHODIC RAY TUBES ".," The present invention relates to improvements to a method of making cathode ray tubes comprising of a housing and mounting assembly that includes at least one cathode and heater for the same sealed in the envelope; and the method includes the steps of baking the shell and mounting kit at approximately 300 ° C to 450 ° C and simultaneously discharging the gases from the shell before sealing the shell; characterized in that, during the simultaneous firing and discharge stages, radio-frequency energy is applied to the mounting assembly and electrical current is applied through the heater, in sequential applications and then in simultaneous applications. - Google Patents

IMPROVEMENTS TO A METHOD FOR MANUFACTURING CATHODIC RAY TUBES ".," The present invention relates to improvements to a method of making cathode ray tubes comprising of a housing and mounting assembly that includes at least one cathode and heater for the same sealed in the envelope; and the method includes the steps of baking the shell and mounting kit at approximately 300 ° C to 450 ° C and simultaneously discharging the gases from the shell before sealing the shell; characterized in that, during the simultaneous firing and discharge stages, radio-frequency energy is applied to the mounting assembly and electrical current is applied through the heater, in sequential applications and then in simultaneous applications.

Info

Publication number
MX2991E
MX2991E MX100146U MX10014675U MX2991E MX 2991 E MX2991 E MX 2991E MX 100146 U MX100146 U MX 100146U MX 10014675 U MX10014675 U MX 10014675U MX 2991 E MX2991 E MX 2991E
Authority
MX
Mexico
Prior art keywords
shell
heater
ray tubes
mounting assembly
applications
Prior art date
Application number
MX100146U
Other languages
Spanish (es)
Inventor
Frank Stanley Sawicki
Original Assignee
Rca Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rca Corp filed Critical Rca Corp
Publication of MX2991E publication Critical patent/MX2991E/en

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
MX100146U 1974-03-25 1975-03-03 IMPROVEMENTS TO A METHOD FOR MANUFACTURING CATHODIC RAY TUBES ".," The present invention relates to improvements to a method of making cathode ray tubes comprising of a housing and mounting assembly that includes at least one cathode and heater for the same sealed in the envelope; and the method includes the steps of baking the shell and mounting kit at approximately 300 ° C to 450 ° C and simultaneously discharging the gases from the shell before sealing the shell; characterized in that, during the simultaneous firing and discharge stages, radio-frequency energy is applied to the mounting assembly and electrical current is applied through the heater, in sequential applications and then in simultaneous applications. MX2991E (en)

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
MX2991E true MX2991E (en) 1980-01-23

Family

ID=23803543

Family Applications (1)

Application Number Title Priority Date Filing Date
MX100146U MX2991E (en) 1974-03-25 1975-03-03 IMPROVEMENTS TO A METHOD FOR MANUFACTURING CATHODIC RAY TUBES ".," The present invention relates to improvements to a method of making cathode ray tubes comprising of a housing and mounting assembly that includes at least one cathode and heater for the same sealed in the envelope; and the method includes the steps of baking the shell and mounting kit at approximately 300 ° C to 450 ° C and simultaneously discharging the gases from the shell before sealing the shell; characterized in that, during the simultaneous firing and discharge stages, radio-frequency energy is applied to the mounting assembly and electrical current is applied through the heater, in sequential applications and then in simultaneous applications.

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2273365A1 (en) 1975-12-26
US3922049A (en) 1975-11-25
JPS50131452A (en) 1975-10-17
NL7503481A (en) 1975-09-29
CA1022227A (en) 1977-12-06
GB1489644A (en) 1977-10-26
ES435720A1 (en) 1976-12-16
ZA751834B (en) 1976-02-25
BE827021A (en) 1975-07-16
DE2512906C3 (en) 1984-10-18
DE2512906A1 (en) 1975-10-09
AU7925775A (en) 1976-09-23
PL97861B1 (en) 1978-03-30
BR7501624A (en) 1975-12-23
IT1034121B (en) 1979-09-10
SU663335A3 (en) 1979-05-15
JPS555810B2 (en) 1980-02-09
DE2512906B2 (en) 1977-08-11
FR2273365B1 (en) 1978-12-29

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