FR874605A - Improvements to discharge devices used at very high frequencies - Google Patents

Improvements to discharge devices used at very high frequencies

Info

Publication number: FR874605A
Authority: FR; France
Prior art keywords: devices used; high frequencies; discharge devices; discharge; frequencies
Prior art date: 1940-03-01
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.)

Compagnie Francaise Thomson Houston SA

Original Assignee

Compagnie Francaise Thomson Houston SA

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.)

1940-03-01

Filing date

1941-07-25

Publication date

1942-08-13

1940-03-01 Priority claimed from US321746A external-priority patent/US2366555A/en

1941-07-25 Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA

1942-08-13 Application granted granted Critical

1942-08-13 Publication of FR874605A publication Critical patent/FR874605A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/78—Tubes with electron stream modulated by deflection in a resonator
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators

FR874605D 1940-03-01 1941-07-25 Improvements to discharge devices used at very high frequencies Expired FR874605A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US321746A US2366555A (en)	1940-03-01	1940-03-01	High-frequency apparatus
US385437A US2366556A (en)	1940-03-01	1941-03-27	High-frequency apparatus

Publications (1)

Publication Number	Publication Date
FR874605A true FR874605A (en)	1942-08-13

Family

ID=26983113

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR874605D Expired FR874605A (en)	1940-03-01	1941-07-25	Improvements to discharge devices used at very high frequencies
FR877643D Expired FR877643A (en)	1940-03-01	1941-12-10	Improvements to speed modulated electron tubes

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
FR877643D Expired FR877643A (en)	1940-03-01	1941-12-10	Improvements to speed modulated electron tubes

Country Status (5)

Country	Link
US (1)	US2366556A (en)
BE (2)	BE446568A (en)
DE (1)	DE919485C (en)
FR (2)	FR874605A (en)
GB (1)	GB548346A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE967231C (en) *	1940-10-22	1957-10-24	Pintsch Bamag Ag	Device for fanning (generating, amplifying or receiving) ultra-short electrical waves, in particular the decimeter or centimeter wave range
US2435601A (en) *	1942-12-31	1948-02-10	Gen Electric	Phase modulation system
US2752523A (en) *	1951-05-15	1956-06-26	Int Standard Electric Corp	Electron discharge apparatus
US3233182A (en) *	1958-05-28	1966-02-01	Zenith Radio Corp	Parametric electronic signal amplifying methods and apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE428305A (en) *	1937-05-29

1941
- 1941-02-16 DE DEA6792D patent/DE919485C/en not_active Expired
- 1941-03-03 GB GB2861/41A patent/GB548346A/en not_active Expired
- 1941-03-27 US US385437A patent/US2366556A/en not_active Expired - Lifetime
- 1941-07-25 FR FR874605D patent/FR874605A/en not_active Expired
- 1941-12-10 FR FR877643D patent/FR877643A/en not_active Expired
1942
- 1942-07-24 BE BE446568D patent/BE446568A/xx unknown
- 1942-11-08 BE BE447875D patent/BE447875A/xx unknown

Also Published As

Publication number	Publication date
GB548346A (en)	1942-10-07
BE447875A (en)	1942-12-31
FR877643A (en)	1942-12-11
US2366556A (en)	1945-01-02
DE919485C (en)	1954-10-25
BE446568A (en)	1942-08-31

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