FR925815A - Perfectionnements aux tubes à décharge - Google Patents

Perfectionnements aux tubes à décharge

Info

Publication number: FR925815A
Authority: FR; France
Prior art keywords: discharge tubes; tubes; discharge
Prior art date: 1945-04-21
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.)

1945-04-21

Filing date

1946-04-19

Publication date

1947-09-15

1946-04-19 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1947-09-15 Application granted granted Critical

1947-09-15 Publication of FR925815A publication Critical patent/FR925815A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S315/00—Electric lamp and discharge devices: systems
- Y10S315/01—Fluorescent lamp circuits with more than two principle electrodes

FR925815D 1945-04-21 1946-04-19 Perfectionnements aux tubes à décharge Expired FR925815A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US589489A US2530990A (en)	1945-04-21	1945-04-21	Electric discharge device

Publications (1)

Publication Number	Publication Date
FR925815A true FR925815A (fr)	1947-09-15

Family

ID=24358229

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR925815D Expired FR925815A (fr)	1945-04-21	1946-04-19	Perfectionnements aux tubes à décharge

Country Status (4)

Country	Link
US (1)	US2530990A (es)
ES (1)	ES175396A1 (es)
FR (1)	FR925815A (es)
GB (1)	GB646369A (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE954717C (de) *	1952-02-16	1956-12-20	Patra Patent Treuhand	Verwendung einer gas- und/oder dampfgefuellten elektrischen Entladungsroehre
DE1022691B (de) *	1952-08-07	1958-01-16	Tesla Np	Sicherheits-Gasentladungslampe zur Verwendung in Gruben und anderen feuer- oder explosionsgefaehrdeten Raeumen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2725497A (en) *	1951-04-25	1955-11-29	Westinghouse Electric Corp	Floating grids for fluorescent lamps
DE1065091B (de) *	1956-11-22	1959-09-10	Kenneth J Germeshausen	Roehrenfoermige Blitzlichtentladungslampe
US2908841A (en) *	1958-05-19	1959-10-13	Greber Henry	Gas discharge lamp
US3262013A (en) *	1962-02-02	1966-07-19	Martin Marietta Corp	Perforated hollow cathode discharge device
US3376457A (en) *	1964-12-07	1968-04-02	Westinghouse Electric Corp	Electric discharge lamp with space charge relieving means
US3348094A (en) *	1965-12-28	1967-10-17	Sylvania Electric Prod	Projection lamp including a blackening control device
US3435272A (en) *	1966-07-15	1969-03-25	Gen Electric	Tubular halogen cycle incandescent lamp with inner cylinder for universal operation
US3683226A (en) *	1970-09-30	1972-08-08	Gen Electric	Electric lamp apparatus having diffusion barrier
US3798485A (en) *	1972-09-29	1974-03-19	Gen Electric	Lamp apparatus for improving wall darkening characteristics
US3798481A (en) *	1972-10-20	1974-03-19	Thermoplastic Processes Inc	Fluorescent lamp heat shield
CH631575A5 (de) *	1978-04-28	1982-08-13	Bbc Brown Boveri & Cie	Verfahren zur lebensdauererhoehung eines gasentladungsgefaesses.
US4393323A (en) *	1981-01-23	1983-07-12	Plascore, Inc.	Fluorescent lamp shield
US4866339A (en) *	1987-12-21	1989-09-12	Gte Laboratories Incorporated	Beam mode fluorescent lamp
EP1393346A2 (en) *	2001-05-08	2004-03-03	Koninklijke Philips Electronics N.V.	Low-pressure mercury vapour discharge lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL12876C (es) *	1922-06-13	1925-04-15
DE510595C (de) *	1928-07-14	1930-10-28	Patra Patent Treuhand	Elektrische Entladungslampe mit Gas- oder Dampffuellung
NL33775C (es) *	1930-07-27
US2038049A (en) *	1931-12-11	1936-04-21	Kirsten Lighting Corp	Low voltage gas arc lamp
US1980534A (en) *	1932-03-04	1934-11-13	Kirsten Lighting Corp	Gas arc lamp
US2386277A (en) *	1942-02-24	1945-10-09	Raytheon Mfg Co	Fluorescent lamp

1945
- 1945-04-21 US US589489A patent/US2530990A/en not_active Expired - Lifetime
1946
- 1946-04-19 FR FR925815D patent/FR925815A/fr not_active Expired
- 1946-07-09 GB GB20499/46A patent/GB646369A/en not_active Expired
- 1946-10-22 ES ES0175396A patent/ES175396A1/es not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE954717C (de) *	1952-02-16	1956-12-20	Patra Patent Treuhand	Verwendung einer gas- und/oder dampfgefuellten elektrischen Entladungsroehre
DE1022691B (de) *	1952-08-07	1958-01-16	Tesla Np	Sicherheits-Gasentladungslampe zur Verwendung in Gruben und anderen feuer- oder explosionsgefaehrdeten Raeumen

Also Published As

Publication number	Publication date
ES175396A1 (es)	1946-12-16
US2530990A (en)	1950-11-21
GB646369A (en)	1950-11-22

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FR925815A - Perfectionnements aux tubes à décharge - Google Patents

Info

Links

Classifications

Applications Claiming Priority (1)

Publications (1)

Family

ID=24358229

Family Applications (1)

Country Status (4)

Cited By (2)

Families Citing this family (14)

Family Cites Families (6)

Cited By (2)

Also Published As

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