FR824238A - Improvements to discharge tubes - Google Patents

Improvements to discharge tubes

Info

Publication number: FR824238A
Authority: FR; France
Prior art keywords: discharge tubes; tubes; discharge
Prior art date: 1936-07-13
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 des Lampes

Original Assignee

Compagnie des Lampes

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.)

1936-07-13

Filing date

1937-07-12

Publication date

1938-02-04

1937-07-12 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1938-02-04 Application granted granted Critical

1938-02-04 Publication of FR824238A publication Critical patent/FR824238A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/14—Magnetic means for controlling the discharge

FR824238D 1936-07-13 1937-07-12 Improvements to discharge tubes Expired FR824238A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB19422/36A GB478208A (en)	1936-07-13	1936-07-13	Improvements in and relating to electric discharge devices

Publications (1)

Publication Number	Publication Date
FR824238A true FR824238A (en)	1938-02-04

Family

ID=10129099

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR824238D Expired FR824238A (en)	1936-07-13	1937-07-12	Improvements to discharge tubes

Country Status (4)

Country	Link
US (1)	US2177690A (en)
DE (1)	DE671795C (en)
FR (1)	FR824238A (en)
GB (1)	GB478208A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2499506A (en) *	1944-09-11	1950-03-07	Gen Electric	Electric discharge device and electrode therefor
US2460739A (en) *	1946-04-17	1949-02-01	Gen Electric	Electrode construction
US2670451A (en) *	1950-01-12	1954-02-23	Westinghouse Electric Corp	Short arc high-pressure vapor discharge lamp
US4037266A (en) *	1975-12-29	1977-07-19	Bell Telephone Laboratories, Incorporated	Voltage surge protector
DE19610387A1 (en) *	1996-03-16	1997-09-18	Bosch Gmbh Robert	Gas discharge lamp, in particular for motor vehicle headlights

1936
- 1936-07-13 GB GB19422/36A patent/GB478208A/en not_active Expired
1937
- 1937-07-09 US US152816A patent/US2177690A/en not_active Expired - Lifetime
- 1937-07-12 FR FR824238D patent/FR824238A/en not_active Expired
- 1937-07-14 DE DEP75529D patent/DE671795C/en not_active Expired

Also Published As

Publication number	Publication date
US2177690A (en)	1939-10-31
DE671795C (en)	1939-02-14
GB478208A (en)	1938-01-13

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