FR2222747A1 - - Google Patents

Info

Publication number: FR2222747A1
Authority: FR; France
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

Application number

FR7409401A

Other languages

French (fr)

Other versions

FR2222747B1 (en

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

International Standard Electric Corp

Original Assignee

International Standard Electric 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.)

1973-03-20

Filing date

1974-03-20

Publication date

1974-10-18

1974-03-20 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1974-10-18 Publication of FR2222747A1 publication Critical patent/FR2222747A1/fr

1979-01-26 Application granted granted Critical

1979-01-26 Publication of FR2222747B1 publication Critical patent/FR2222747B1/fr

Status Expired legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/04—Cathodes

FR7409401A 1973-03-20 1974-03-20 Expired FR2222747B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2313911A DE2313911B2 (en)	1973-03-20	1973-03-20	Fast heating cathode for cathode ray tubes

Publications (2)

Publication Number	Publication Date
FR2222747A1 true FR2222747A1 (en)	1974-10-18
FR2222747B1 FR2222747B1 (en)	1979-01-26

Family

ID=5875360

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7409401A Expired FR2222747B1 (en)	1973-03-20	1974-03-20

Country Status (13)

Country	Link
US (1)	US3895249A (en)
JP (1)	JPS559127B2 (en)
BE (1)	BE812531A (en)
CA (1)	CA1019385A (en)
CS (1)	CS202174A2 (en)
DD (1)	DD110974A5 (en)
DE (1)	DE2313911B2 (en)
ES (1)	ES424449A1 (en)
FR (1)	FR2222747B1 (en)
GB (1)	GB1436986A (en)
NL (1)	NL7403571A (en)
PL (1)	PL92465B1 (en)
RO (1)	RO64641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0045932A2 (en) *	1980-08-07	1982-02-17	International Standard Electric Corporation	Method for shortening the heatingtime of an indirectly heated cathode

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2614270C2 (en) *	1976-04-02	1982-04-15	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Cathode structure
DE2654554C2 (en) *	1976-12-02	1983-04-21	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Mushroom cathode for cathode ray tubes
DE2704870C3 (en) *	1977-02-05	1980-12-18	Bayer Ag, 5090 Leverkusen	Radiant heated furnace
US4184100A (en) *	1977-03-29	1980-01-15	Tokyo Shibaura Electric Co., Ltd.	Indirectly-heated cathode device for electron tubes
DE2846796C2 (en) *	1978-10-27	1982-08-12	Standard Elektrik Lorenz Ag, 7000 Stuttgart	Method of attaching the cathode holder of a rapid heating cathode
JPS6036056B2 (en) *	1979-06-21	1985-08-17	株式会社東芝	cathode structure
DE2938248A1 (en) *	1979-09-21	1981-03-26	Standard Elektrik Lorenz AG, 70435 Stuttgart	HEATING ELEMENT FOR AN INDIRECTLY HEATED CATHODE
DE3145167A1 (en) *	1981-11-13	1983-05-26	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Arrangement having a thermionic emission cathode
US4554480A (en) *	1983-11-29	1985-11-19	Rca Corporation	Cathode-ray tube having an electron gun assembly with emissivity modifying means
US4675573A (en) *	1985-08-23	1987-06-23	Varian Associates, Inc.	Method and apparatus for quickly heating a vacuum tube cathode
JPH11185649A (en)	1997-12-22	1999-07-09	Hitachi Ltd	Indirectly heated cathode body structure of cathode-ray tube
KR100310683B1 (en) *	1999-09-08	2001-10-18	김순택	Cathode assembly of the electron gun and method of manufacturing the same
JP2001195997A (en)	2000-01-11	2001-07-19	Hitachi Ltd	Cathode ray tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1364978A (en) *	1962-07-30	1964-06-26	Philips Nv	Method for covering the filament of an indirectly heated cathode with an insulating layer with black radiation
FR1504694A (en) *	1965-10-22	1967-12-08	Philips Nv	Source of electrons for the electron gun of a cathode ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2507812A (en) *	1945-08-17	1950-05-16	Cossor Ltd A C	Thermionic cathode
US2914694A (en) *	1957-10-04	1959-11-24	Rca Corp	Cathode assembly
US3450565A (en) *	1964-12-18	1969-06-17	Sylvania Electric Prod	Method of coating heater coils
US3376461A (en) *	1964-12-28	1968-04-02	Varian Associates	Thermionic cathodes and high frequency electron discharge devices

1973
- 1973-03-20 DE DE2313911A patent/DE2313911B2/en not_active Ceased
- 1973-11-23 US US418644A patent/US3895249A/en not_active Expired - Lifetime
1974
- 1974-03-12 PL PL1974169453A patent/PL92465B1/pl unknown
- 1974-03-13 CA CA194,882A patent/CA1019385A/en not_active Expired
- 1974-03-14 GB GB1132974A patent/GB1436986A/en not_active Expired
- 1974-03-18 NL NL7403571A patent/NL7403571A/xx unknown
- 1974-03-18 DD DD177241A patent/DD110974A5/xx unknown
- 1974-03-19 RO RO7400078086A patent/RO64641A/en unknown
- 1974-03-20 BE BE2053487A patent/BE812531A/en not_active IP Right Cessation
- 1974-03-20 FR FR7409401A patent/FR2222747B1/fr not_active Expired
- 1974-03-20 CS CS742021A patent/CS202174A2/en unknown
- 1974-03-20 JP JP3109974A patent/JPS559127B2/ja not_active Expired
- 1974-03-20 ES ES424449A patent/ES424449A1/en not_active Expired

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1364978A (en) *	1962-07-30	1964-06-26	Philips Nv	Method for covering the filament of an indirectly heated cathode with an insulating layer with black radiation
FR1504694A (en) *	1965-10-22	1967-12-08	Philips Nv	Source of electrons for the electron gun of a cathode ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0045932A2 (en) *	1980-08-07	1982-02-17	International Standard Electric Corporation	Method for shortening the heatingtime of an indirectly heated cathode
EP0045932A3 (en) *	1980-08-07	1982-06-09	International Standard Electric Corporation	Indirectly heated cathode associated with a wehnelt cylinder

Also Published As

Publication number	Publication date
FR2222747B1 (en)	1979-01-26
RO64641A (en)	1978-12-15
BE812531A (en)	1974-09-20
CS202174A2 (en)	1991-06-11
ES424449A1 (en)	1976-06-16
CA1019385A (en)	1977-10-18
US3895249A (en)	1975-07-15
JPS49123569A (en)	1974-11-26
DE2313911B2 (en)	1975-09-25
JPS559127B2 (en)	1980-03-07
PL92465B1 (en)	1977-04-30
DE2313911A1 (en)	1974-10-03
GB1436986A (en)	1976-05-26
NL7403571A (en)	1974-09-24
DD110974A5 (en)	1975-01-12

Legal Events

Date	Code	Title	Description
1985-01-25	ST	Notification of lapse

Publication	Publication Date	Title
AU476761B2 (en)	1976-09-30
AR201235Q (en)	1975-02-21
AU474593B2 (en)	1976-07-29
AU474511B2 (en)	1976-07-22
AU474838B2 (en)	1976-08-05
FR2222747B1 (en)	1979-01-26
AU476714B2 (en)	1976-09-30
AU476696B2 (en)	1976-09-30
AU477823B2 (en)	1975-06-19
JPS5093724A (en)	1975-07-26
AR196382A1 (en)	1973-12-18
AU477824B2 (en)	1975-07-17
AR195311A1 (en)	1973-09-28
AR195948A1 (en)	1973-11-15
AU476873B1 (en)	1975-01-09
AR193950A1 (en)	1973-05-31
AR196123Q (en)	1973-11-30
AR196212Q (en)	1973-12-10
BG26955A3 (en)	1979-07-12
AU479420A (en)	1974-10-03
AU479405A (en)	1975-04-10
BG20508A1 (en)	1975-12-05
CH562474A5 (en)	1975-05-30
BG19315A1 (en)	1975-06-15
AU479562A (en)	1975-01-09