FR811528A - heating element for high voltage cathodes - Google Patents

heating element for high voltage cathodes

Info

Publication number: FR811528A
Authority: FR; France
Prior art keywords: high voltage; heating element; voltage cathodes; cathodes; heating
Prior art date: 1935-10-02
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

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.)

Loewe Opta GmbH

Original Assignee

Loewe Opta 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.)

1935-10-02

Filing date

1936-10-01

Publication date

1937-04-16

1936-10-01 Application filed by Loewe Opta GmbH filed Critical Loewe Opta GmbH

1937-04-16 Application granted granted Critical

1937-04-16 Publication of FR811528A publication Critical patent/FR811528A/en

Status Expired legal-status Critical Current

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

FR811528D 1935-10-02 1936-10-01 heating element for high voltage cathodes Expired FR811528A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DER94368D DE724812C (en)	1935-10-02	1935-10-02	Heating element for indirectly heated high-voltage cathodes

Publications (1)

Publication Number	Publication Date
FR811528A true FR811528A (en)	1937-04-16

Family

ID=7419148

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR811528D Expired FR811528A (en)	1935-10-02	1936-10-01	heating element for high voltage cathodes

Country Status (5)

Country	Link
US (1)	US2083196A (en)
DE (1)	DE724812C (en)
FR (1)	FR811528A (en)
GB (1)	GB474179A (en)
NL (1)	NL47731C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2528425A (en) *		1950-10-31		Electron tube cathode heater
US2563573A (en) *		1951-08-07		Hot cathode electron tube which re
US2817605A (en) *	1947-03-24	1957-12-24	Manuel C Sanz	Method for sealing the pores in a carbon body
GB962926A (en) *	1962-03-19	1964-07-08	Rank Bush Murphy Ltd	Improvements in thermionic cathodes and in methods of manufacturing such cathodes
GB1204316A (en) *	1966-09-26	1970-09-03	Atomic Energy Authority Uk	Improvements in or relating to electron emitting cathodes for irradiation machines
US3534218A (en) *	1967-03-30	1970-10-13	Atomic Energy Authority Uk	Electron emitting cathodes for irradiation machines
CN110218987A (en) *	2019-07-24	2019-09-10	合肥百思新材料研究院有限公司	A kind of cold wall method CVD deposition equipment and its working method

1935
- 1935-10-02 DE DER94368D patent/DE724812C/en not_active Expired
1936
- 1936-09-29 US US103120A patent/US2083196A/en not_active Expired - Lifetime
- 1936-09-30 NL NL79420A patent/NL47731C/xx active
- 1936-10-01 FR FR811528D patent/FR811528A/en not_active Expired
- 1936-10-02 GB GB26774/36A patent/GB474179A/en not_active Expired

Also Published As

Publication number	Publication date
US2083196A (en)	1937-06-08
NL47731C (en)	1940-02-15
DE724812C (en)	1942-09-05
GB474179A (en)	1937-10-27

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