CH256336A - Concentrated electronic current discharge tube. - Google Patents

Concentrated electronic current discharge tube.

Info

Publication number: CH256336A
Authority: CH; Switzerland
Prior art keywords: discharge tube; current discharge; electronic current; concentrated electronic; concentrated
Prior art date: 1945-09-15

Application number

Other languages

French (fr)

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.)

1945-09-15

Filing date

1946-11-07

Publication date

1948-08-15

1946-11-07 Application filed by Philips Nv filed Critical Philips Nv

1948-08-15 Publication of CH256336A publication Critical patent/CH256336A/en

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
- H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
- H01J41/16—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes using gettering substances
- 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
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering

CH256336D 1945-09-15 1946-11-07 Concentrated electronic current discharge tube. CH256336A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL256336X		1945-09-15

Publications (1)

Publication Number	Publication Date
CH256336A true CH256336A (en)	1948-08-15

Family

ID=19781323

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH256336D CH256336A (en)	1945-09-15	1946-11-07	Concentrated electronic current discharge tube.

Country Status (7)

Country	Link
US (1)	US2547200A (en)
BE (1)	BE469199A (en)
CH (1)	CH256336A (en)
DE (1)	DE812942C (en)
FR (1)	FR936837A (en)
GB (1)	GB616585A (en)
NL (1)	NL67617C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2656489A (en) *	1951-04-14	1953-10-20	Bell Telephone Labor Inc	Electron discharge device and processing thereof
FR945456A (en) *	1951-08-08	1949-05-05	Thomson Houston Comp Francaise	Improvements to discharge tubes
BE530043A (en) *	1953-07-02
US2843777A (en) *	1954-01-28	1958-07-15	Rauland Corp	Cathode-ray tubes
US2919380A (en) *	1957-07-23	1959-12-29	Philco Corp	Electron discharge devices
US2956192A (en) *	1959-01-02	1960-10-11	Eitel Mccullough Inc	Gettering electron gun
DE1213062B (en) *	1959-12-05	1966-03-24	Deutsche Bundespost	Process for the production of a surface oxide cathode for electron beam tubes
US3082346A (en) *	1960-05-19	1963-03-19	Gen Electric	Resilient getter supporting arrangement
US3225910A (en) *	1961-02-04	1965-12-28	Porta Paolo Della	Getter devices with non-evaporated gettering material, for maintaining vacuum in electronic tubes
DE1212227B (en) *	1961-12-13	1966-03-10	Deutsche Bundespost	Flat cathode for electron beam tubes
US3250936A (en) *	1962-06-28	1966-05-10	Gen Electric	Electron gun assembly with long life annular cathode curvilinear electron flow
US3293481A (en) *	1963-07-08	1966-12-20	Varian Associates	High frequency electron discharge device
DE1539135A1 (en) *	1965-06-30	1969-08-28	Siemens Ag	Pump arrangement with auxiliary cathode for electrical discharge vessels
US3388275A (en) *	1966-06-08	1968-06-11	Battelle Development Corp	Cathode provided with ion-producing material for decreasing space charge
EP0455162B1 (en) *	1990-04-28	1996-01-10	Sony Corporation	Flat display

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1632080A (en) *	1921-12-27	1927-06-14	Western Electric Co	Electric discharge device
GB297332A (en) *	1927-09-17	1929-08-29	Aeg	Improvements in or relating to thermionic valves
BE366084A (en) *	1928-12-15
US1991279A (en) *	1930-10-31	1935-02-12	Philips Nv	Gas filled discharge tube
US2038341A (en) *	1934-06-07	1936-04-21	Aeg	Electron discharge device

0
- BE BE469199D patent/BE469199A/xx unknown
- NL NL67617D patent/NL67617C/xx active
1946
- 1946-09-13 GB GB27538/46A patent/GB616585A/en not_active Expired
- 1946-11-07 CH CH256336D patent/CH256336A/en unknown
- 1946-11-13 FR FR936837D patent/FR936837A/en not_active Expired
- 1946-11-22 US US711636A patent/US2547200A/en not_active Expired - Lifetime
1948
- 1948-11-05 DE DEP20775A patent/DE812942C/en not_active Expired

Also Published As

Publication number	Publication date
GB616585A (en)	1949-01-24
BE469199A (en)
NL67617C (en)
FR936837A (en)	1948-07-30
US2547200A (en)	1951-04-03
DE812942C (en)	1951-09-06

Publication	Publication Date	Title
CH266753A (en)	1950-02-15	Electron discharge device.
CH256336A (en)	1948-08-15	Concentrated electronic current discharge tube.
FR943372A (en)	1949-03-07	Discharge tube
CH271760A (en)	1950-11-15	Magnetron.
CH260736A (en)	1949-03-31	Electric discharge lamp.
FR922967A (en)	1947-06-24	Electric discharge lamps
CH260209A (en)	1949-02-28	Cathode ray tube device.
DK73424C (en)	1951-11-26	System with an electric discharge lamp.
CH257237A (en)	1948-09-30	Discharge tube.
CH265652A (en)	1949-12-15	Emitting electrode for an electronic discharge device.
CH254935A (en)	1948-05-31	Electronic tube.
FR952893A (en)	1949-11-25	Electronic discharge tubes
CH262409A (en)	1949-06-30	Double controlled discharge tube.
FR948600A (en)	1949-08-04	Electronic discharge devices
FR1007363A (en)	1952-05-05	Concentrated electronic current discharge tube
CH264737A (en)	1949-10-31	Cathode ray tube.
CH248330A (en)	1947-04-30	Electric discharge tube.
CH245853A (en)	1946-11-30	Tube generator circuit.
CH241775A (en)	1946-03-31	Electric discharge tube.
FR924513A (en)	1947-08-07	Electronic photocathode multiplier
CH251243A (en)	1947-10-15	Cathode ray tube.
FR926122A (en)	1947-09-23	Luminescent Discharge Tube
FR926153A (en)	1947-09-23	Liquid cathode current directing tube
FR929001A (en)	1947-12-15	Discharge tube
FR937988A (en)	1948-09-01	Discharge tube