CH292225A - Process for the production of a cathode for an electrical discharge tube which is provided internally with a supply of alkaline earth metal compounds and a cathode produced according to this process. - Google Patents

Process for the production of a cathode for an electrical discharge tube which is provided internally with a supply of alkaline earth metal compounds and a cathode produced according to this process.

Info

Publication number
CH292225A
CH292225A CH292225DA CH292225A CH 292225 A CH292225 A CH 292225A CH 292225D A CH292225D A CH 292225DA CH 292225 A CH292225 A CH 292225A
Authority
CH
Switzerland
Prior art keywords
cathode
production
supply
earth metal
alkaline earth
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH292225A publication Critical patent/CH292225A/en

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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/1209—Plural particulate metal components
CH292225D 1949-10-25 1950-10-23 Process for the production of a cathode for an electrical discharge tube which is provided internally with a supply of alkaline earth metal compounds and a cathode produced according to this process. CH292225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL292225X 1949-10-25

Publications (1)

Publication Number Publication Date
CH292225A true CH292225A (en) 1953-07-31

Family

ID=19782811

Family Applications (1)

Application Number Title Priority Date Filing Date
CH292225D CH292225A (en) 1949-10-25 1950-10-23 Process for the production of a cathode for an electrical discharge tube which is provided internally with a supply of alkaline earth metal compounds and a cathode produced according to this process.

Country Status (6)

Country Link
US (1) US2673277A (en)
BE (1) BE498869A (en)
CH (1) CH292225A (en)
DE (1) DE837273C (en)
FR (1) FR1026424A (en)
GB (1) GB675456A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021956B (en) * 1953-12-22 1958-01-02 Siemens Ag Process for the production of a cathode for electrical discharge vessels

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL91413C (en) * 1951-03-22
DE890390C (en) * 1951-07-12 1953-09-17 Siemens Ag Cathode for electrical discharge vessels
CH315203A (en) * 1952-03-24 1956-07-31 Siemens Ag Cathode for electrical discharge vessels
US2814754A (en) * 1952-08-28 1957-11-26 Raytheon Mfg Co Indirectly-heated cathodes
NL89470C (en) * 1953-03-04
DE1025999B (en) * 1953-03-04 1958-03-13 Egyesuelt Izzolampa Supply cathode in which the supply, at least after activation, has a content of barium oxide
NL97850C (en) * 1953-08-14
NL96853C (en) * 1953-09-24
US2899592A (en) * 1953-11-18 1959-08-11 coppola
BE534280A (en) * 1953-12-22
DE1068818B (en) * 1954-06-16 1959-11-12
BE550480A (en) * 1955-08-23
BE561832A (en) * 1956-10-24
JPS5537920A (en) * 1978-09-11 1980-03-17 Toyota Motor Corp Production of oxygen sensor element
DE2842079A1 (en) * 1978-09-27 1980-04-03 Siemens Ag SUPPLY CATHODE, ESPECIALLY METAL CAPILLARY CATHODE
DE3751168T2 (en) * 1986-12-19 1995-10-19 Toshiba Kawasaki Kk Structure of an indirectly heated cathode for cathode ray tubes.
KR920004900B1 (en) * 1990-03-13 1992-06-22 삼성전관 주식회사 Impregnated Cathode Structure and Manufacturing Method Thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2011121A (en) * 1934-06-06 1935-08-13 Smith Corp A O Method of making welded irregular shaped hollow articles
US2021119A (en) * 1934-06-22 1935-11-12 Mccord Radiator & Mfg Co Method of making pressure cartridges
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
US2131204A (en) * 1936-01-15 1938-09-27 Siemens Ag Indirectly heated thermionic cathode
US2354947A (en) * 1940-08-30 1944-08-01 Thompson Prod Inc Hollow head poppet valve
US2375808A (en) * 1943-02-16 1945-05-15 Samuel C Miller Electrode for luminous tubes
US2506747A (en) * 1946-06-18 1950-05-09 Smith Roger Olof Device for the end welding of studs
NL69486C (en) * 1947-11-26
US2492619A (en) * 1948-01-02 1949-12-27 Sylvania Electric Prod Electrical discharge tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021956B (en) * 1953-12-22 1958-01-02 Siemens Ag Process for the production of a cathode for electrical discharge vessels

Also Published As

Publication number Publication date
FR1026424A (en) 1953-04-28
BE498869A (en)
GB675456A (en) 1952-07-09
DE837273C (en) 1952-04-21
US2673277A (en) 1954-03-23

Similar Documents

Publication Publication Date Title
CH292225A (en) Process for the production of a cathode for an electrical discharge tube which is provided internally with a supply of alkaline earth metal compounds and a cathode produced according to this process.
CH313675A (en) Process for the production of a cathode ray tube with a funnel-shaped bulb part
CH297019A (en) Process for the production of a new phosphoric acid ester.
CH344219A (en) Process for the production of a self-baking, continuous anode for aluminum electrolysis furnaces and anode produced according to this process
CH310624A (en) Process for the production of a supply cathode and supply cathode produced by this process.
CH402197A (en) Process for the production of an impregnated cathode for electric discharge tubes and a cathode produced by this process
CH260730A (en) Process for producing the oxide cathode of an electrical discharge tube and discharge tube produced by this process.
CH298304A (en) Cathode for an electrical discharge tube, the wall of which consists at least partially of a porous body made of refractory metal, and a method for producing this cathode.
AT172894B (en) A method for producing a cathode for an electrical discharge tube, which cathode is provided internally with a supply of alkaline earth metal compounds, and a cathode produced by this method
CH311391A (en) A method of manufacturing a cathode for an electric discharge tube and a cathode manufactured by this method.
AT174680B (en) Process for the production of flat grids and grids produced by this process
AT169816B (en) Process for the production of shaped bodies from high density tungsten alloys
AT257749B (en) Process for the production of an indirectly heatable cathode for an electrical discharge tube
AT176925B (en) Method of manufacturing a supply cathode
CH307771A (en) Process for producing a cathode for electric discharge tubes and cathode produced by this process.
CH293705A (en) Process for the production of phosphoric acid.
AT173701B (en) Process for the production of new dithiosemicarbazones substituted glyoxals
CH298663A (en) A method of manufacturing a cathode for an electric discharge tube, and a cathode manufactured according to this method.
AT174993B (en) An electric discharge tube having a cathode consisting of a porous body of refractory metal and a method for producing such a cathode
AT171409B (en) Process for the production of sintered hard metal alloys
AT185901B (en) Process for the production of an anode for X-ray tubes.
CH425005A (en) Process for the production of an implosion-free cathode ray tube and cathode ray tube produced by this process
AT190604B (en) Process for the production of indirectly heatable cathodes for electrical discharge tubes
CH270673A (en) Process for producing an electrical discharge tube with an oxide cathode and discharge tube produced according to this process.
AT178205B (en) Process for treating a cobalt-platinum alloy for the production of magnetic material