DE59304447D1 - Cathode with a porous cathode element - Google Patents

Cathode with a porous cathode element

Info

Publication number
DE59304447D1
DE59304447D1 DE59304447T DE59304447T DE59304447D1 DE 59304447 D1 DE59304447 D1 DE 59304447D1 DE 59304447 T DE59304447 T DE 59304447T DE 59304447 T DE59304447 T DE 59304447T DE 59304447 D1 DE59304447 D1 DE 59304447D1
Authority
DE
Germany
Prior art keywords
cathode
porous
cathode element
porous cathode
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 - Fee Related
Application number
DE59304447T
Other languages
German (de)
Inventor
Georg Dr Gaertner
Hans Dr Lydtin
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.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
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 Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Application granted granted Critical
Publication of DE59304447D1 publication Critical patent/DE59304447D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
DE59304447T 1992-03-05 1993-03-01 Cathode with a porous cathode element Expired - Fee Related DE59304447D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4206909A DE4206909A1 (en) 1992-03-05 1992-03-05 THERMIONIC EMITTING CATHODE ELEMENT

Publications (1)

Publication Number Publication Date
DE59304447D1 true DE59304447D1 (en) 1996-12-19

Family

ID=6453269

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4206909A Withdrawn DE4206909A1 (en) 1992-03-05 1992-03-05 THERMIONIC EMITTING CATHODE ELEMENT
DE59304447T Expired - Fee Related DE59304447D1 (en) 1992-03-05 1993-03-01 Cathode with a porous cathode element

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4206909A Withdrawn DE4206909A1 (en) 1992-03-05 1992-03-05 THERMIONIC EMITTING CATHODE ELEMENT

Country Status (3)

Country Link
EP (1) EP0559283B1 (en)
JP (1) JPH065198A (en)
DE (2) DE4206909A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400353A1 (en) * 1994-01-08 1995-07-13 Philips Patentverwaltung Controllable thermionic electron emitter
DE19652822A1 (en) 1996-12-18 1998-06-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Sintered electrode
DE19855670A1 (en) * 1998-12-02 1999-12-09 Siemens Ag Steam generator operating method
DE102006024437B4 (en) * 2006-05-24 2012-08-09 Siemens Ag X-ray

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL266639A (en) * 1960-07-05
FR1410641A (en) * 1963-10-04 1965-09-10 Philips Nv Porous metal body and its manufacturing process
JPS58154131A (en) * 1982-03-10 1983-09-13 Hitachi Ltd Impregnation type cathode
US4986788A (en) * 1989-11-02 1991-01-22 Samsung Electron Devices Co., Ltd. Process of forming an impregnated cathode
KR920001335B1 (en) * 1989-11-10 1992-02-10 삼성전관 주식회사 Dispenser cathode

Also Published As

Publication number Publication date
JPH065198A (en) 1994-01-14
DE4206909A1 (en) 1993-09-09
EP0559283B1 (en) 1996-11-13
EP0559283A1 (en) 1993-09-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH, 2233

8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH, 20

8339 Ceased/non-payment of the annual fee