NL50262C - - Google Patents

Info

Publication number: NL50262C
Authority: NL; Netherlands

Application number

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.)

1937-03-30

Publication of NL50262C publication Critical patent/NL50262C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
- 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
- H01J1/32—Secondary-electron-emitting electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Discharge Lamp (AREA)
Solid Thermionic Cathode (AREA)
Gas-Filled Discharge Tubes (AREA)

NL50262D 1937-03-30 NL50262C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL207921X		1937-03-30

Publications (1)

Publication Number	Publication Date
NL50262C true NL50262C (enrdf_load_stackoverflow)

Family

ID=19778652

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL50262D NL50262C (enrdf_load_stackoverflow)	1937-03-30

Country Status (7)

Country	Link
US (1)	US2159774A (enrdf_load_stackoverflow)
BE (1)	BE427228A (enrdf_load_stackoverflow)
CH (1)	CH207921A (enrdf_load_stackoverflow)
DE (1)	DE747205C (enrdf_load_stackoverflow)
FR (1)	FR835838A (enrdf_load_stackoverflow)
GB (1)	GB498792A (enrdf_load_stackoverflow)
NL (1)	NL50262C (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE477661A (enrdf_load_stackoverflow) *	1939-02-03
DE914418C (de) *	1939-02-19	1954-07-01	Fernseh Gmbh	Entladungsroehre mit einer sekundaeremittierenden Isolieroberflaeche
FR857575A (fr) *	1939-02-27	1940-09-19	Materiel Telephonique	Dispositifs à décharge électronique et circuits les utilisant
DE895629C (de) *	1940-07-31	1953-11-05	Zeiss Ikon Ag	Verfahren zur Herstellung von Sekundaeremissionskathoden
US2422088A (en) *	1944-04-03	1947-06-10	Rca Corp	Electronic discriminator
NL72121C (enrdf_load_stackoverflow) *	1945-10-24
GB683061A (en) *	1948-01-24	1952-11-19	Emi Ltd	Improvements relating to thermionic valves utilising secondary electron emission amplification
US2792273A (en) *	1954-01-14	1957-05-14	Gen Electric	Oxide coated nickel cathode and method of activation
US2878093A (en) *	1955-02-14	1959-03-17	Univ Minnesota	Method of preparing emitter surfaces

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT101557B (de) *	1923-04-11	1925-11-10	Philips Nv	Entladungsröhre.
BE359997A (enrdf_load_stackoverflow) *	1928-05-14
GB443214A (en) *	1934-08-20	1936-02-20	Albert Karl Franz Patin	Improved method of applying coatings of alkali or alkaline earth metals

0
- BE BE427228D patent/BE427228A/xx unknown
- NL NL50262D patent/NL50262C/xx active
1938
- 1938-03-15 US US195942A patent/US2159774A/en not_active Expired - Lifetime
- 1938-03-28 FR FR835838D patent/FR835838A/fr not_active Expired
- 1938-03-28 GB GB9451/38A patent/GB498792A/en not_active Expired
- 1938-03-28 CH CH207921D patent/CH207921A/de unknown
- 1938-03-29 DE DEN41816D patent/DE747205C/de not_active Expired

Also Published As

Publication number	Publication date
GB498792A (en)	1939-01-13
CH207921A (de)	1939-12-15
FR835838A (fr)	1939-01-04
BE427228A (enrdf_load_stackoverflow)
US2159774A (en)	1939-05-23
DE747205C (de)	1944-09-15

Publication	Publication Date	Title
FR819526A (enrdf_load_stackoverflow)	1937-10-21
BE420085R (enrdf_load_stackoverflow)	1937-03-31
BE430181A (enrdf_load_stackoverflow)
BE422006A (enrdf_load_stackoverflow)
BE235779A (enrdf_load_stackoverflow)
BE386746A (enrdf_load_stackoverflow)
BE412505A (enrdf_load_stackoverflow)
BE413076A (enrdf_load_stackoverflow)
BE417149A (enrdf_load_stackoverflow)
BE417582A (enrdf_load_stackoverflow)
BE418783A (enrdf_load_stackoverflow)
BE419342A (enrdf_load_stackoverflow)	1937-02-27
BE419443A (enrdf_load_stackoverflow)
BE419523A (enrdf_load_stackoverflow)
BE419588A (enrdf_load_stackoverflow)
BE419666A (enrdf_load_stackoverflow)
BE419783A (enrdf_load_stackoverflow)
BE419812A (enrdf_load_stackoverflow)
BE419835A (enrdf_load_stackoverflow)
BE419889A (enrdf_load_stackoverflow)
BE419979A (enrdf_load_stackoverflow)
BE420057A (enrdf_load_stackoverflow)
BE420089A (enrdf_load_stackoverflow)
BE420107A (enrdf_load_stackoverflow)
BE420365A (enrdf_load_stackoverflow)