FR1457177A - Indirectly heated cathode for discharge tube - Google Patents

Indirectly heated cathode for discharge tube

Info

Publication number: FR1457177A
Authority: FR; France
Prior art keywords: discharge tube; indirectly heated; heated cathode; cathode; indirectly
Prior art date: 1964-12-10
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

Application number

FR41491A

Other languages

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1964-12-10

Filing date

1965-12-09

Publication date

1966-10-28

1965-12-09 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1966-10-28 Application granted granted Critical

1966-10-28 Publication of FR1457177A publication Critical patent/FR1457177A/en

Status Expired legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

FR41491A 1964-12-10 1965-12-09 Indirectly heated cathode for discharge tube Expired FR1457177A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL646414340A NL141698B (en)	1964-12-10	1964-12-10	INDIRECTLY HEATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE.

Publications (1)

Publication Number	Publication Date
FR1457177A true FR1457177A (en)	1966-10-28

Family

ID=19791604

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR41491A Expired FR1457177A (en)	1964-12-10	1965-12-09	Indirectly heated cathode for discharge tube

Country Status (11)

Country	Link
US (1)	US3366827A (en)
AT (1)	AT258426B (en)
BE (1)	BE673477A (en)
CH (1)	CH438499A (en)
DE (1)	DE1236663B (en)
ES (1)	ES320448A1 (en)
FR (1)	FR1457177A (en)
GB (1)	GB1100195A (en)
NL (1)	NL141698B (en)
NO (1)	NO116432B (en)
SE (1)	SE312381B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE29703990U1 (en) *	1997-03-05	1997-04-17	Thielen Marcus Dipl Phys	Cold electrode for gas discharges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2143915A (en) *	1935-11-07	1939-01-17	Telefunken Gmbh	Indirectly heated cathode
US2155237A (en) *	1937-11-18	1939-04-18	Gen Electric	Electric discharge device
US2201731A (en) *	1938-11-30	1940-05-21	Gen Electric	Discharge tube electrode assembly

1964
- 1964-12-10 NL NL646414340A patent/NL141698B/en unknown
1965
- 1965-11-18 US US508464A patent/US3366827A/en not_active Expired - Lifetime
- 1965-12-06 CH CH1678165A patent/CH438499A/en unknown
- 1965-12-07 SE SE15819/65A patent/SE312381B/xx unknown
- 1965-12-07 ES ES0320448A patent/ES320448A1/en not_active Expired
- 1965-12-07 NO NO160805A patent/NO116432B/no unknown
- 1965-12-07 GB GB51832/65A patent/GB1100195A/en not_active Expired
- 1965-12-07 DE DEN27717A patent/DE1236663B/en active Pending
- 1965-12-07 AT AT1100165A patent/AT258426B/en active
- 1965-12-08 BE BE673477A patent/BE673477A/xx unknown
- 1965-12-09 FR FR41491A patent/FR1457177A/en not_active Expired

Also Published As

Publication number	Publication date
NL6414340A (en)	1966-06-13
SE312381B (en)	1969-07-14
AT258426B (en)	1967-11-27
CH438499A (en)	1967-06-30
NL141698B (en)	1974-03-15
BE673477A (en)	1966-06-08
ES320448A1 (en)	1966-07-01
GB1100195A (en)	1968-01-24
US3366827A (en)	1968-01-30
DE1236663B (en)	1967-03-16
NO116432B (en)	1969-03-24

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