FR886755A - Indirect heating cathode manufacturing process - Google Patents

Indirect heating cathode manufacturing process

Info

Publication number
FR886755A
FR886755A FR886755DA FR886755A FR 886755 A FR886755 A FR 886755A FR 886755D A FR886755D A FR 886755DA FR 886755 A FR886755 A FR 886755A
Authority
FR
France
Prior art keywords
manufacturing process
indirect heating
cathode manufacturing
heating cathode
indirect
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
Application number
Other languages
French (fr)
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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR886755A publication Critical patent/FR886755A/en
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
FR886755D 1941-10-15 1942-10-13 Indirect heating cathode manufacturing process Expired FR886755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL103265A NL59317C (en) 1941-10-15 1941-10-15

Publications (1)

Publication Number Publication Date
FR886755A true FR886755A (en) 1943-10-25

Family

ID=19780546

Family Applications (1)

Application Number Title Priority Date Filing Date
FR886755D Expired FR886755A (en) 1941-10-15 1942-10-13 Indirect heating cathode manufacturing process

Country Status (7)

Country Link
US (1) US2495580A (en)
BE (1) BE447568A (en)
CH (1) CH241098A (en)
DE (1) DE846739C (en)
FR (1) FR886755A (en)
GB (1) GB611933A (en)
NL (1) NL59317C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563573A (en) * 1951-08-07 Hot cathode electron tube which re
CH308666A (en) * 1951-01-11 1955-07-31 Egyesuelt Izzolampa Cathode and process for its manufacture.
US3031740A (en) * 1958-03-12 1962-05-01 Eitel Mccullough Inc Matrix type cathode
FR2215699B1 (en) * 1973-01-30 1976-04-30 Commissariat Energie Atomique
US4987342A (en) * 1989-03-27 1991-01-22 Gte Products Corporation Self-ballasted glow discharge lamp having indirectly-heated cathode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618499A (en) * 1923-11-06 1927-02-22 Charles P White Electrical apparatus
US2075876A (en) * 1927-12-28 1937-04-06 Electrons Inc Cathode organization
US2107945A (en) * 1934-11-20 1938-02-08 Gen Electric Cathode structure

Also Published As

Publication number Publication date
NL59317C (en) 1946-06-15
BE447568A (en) 1942-11-30
DE846739C (en) 1952-08-18
GB611933A (en) 1948-11-05
US2495580A (en) 1950-01-24
CH241098A (en) 1946-02-15

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