DK51552C - Lighting system. - Google Patents

Lighting system.

Info

Publication number: DK51552C
Authority: DK; Denmark
Prior art keywords: lighting system; lighting
Prior art date: 1931-12-01

Application number

Other languages

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.)

1931-12-01

Filing date

1934-08-30

Publication date

1936-04-20

1933-09-30 Priority claimed from DEN35778D external-priority patent/DE655183C/en

1934-08-30 Application filed by Philips Nv filed Critical Philips Nv

1936-04-20 Application granted granted Critical

1936-04-20 Publication of DK51552C publication Critical patent/DK51552C/en

Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/16—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies
- H05B41/18—Circuit arrangements in which the lamp is fed by DC or by low-frequency AC, e.g. by 50 cycles/sec AC, or with network frequencies having a starting switch

DK51552D 1931-12-01 1934-08-30 Lighting system. DK51552C (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
NL165988X		1931-12-01
DEN35778D DE655183C (en)	1933-09-30	1933-09-30	Arrangement for regulating the vapor pressure in temperature-sensitive discharge lamps
DEN35788D DE632439C (en)	1931-12-01	1933-10-01	Lighting system with several transformers, whose feed circuits are in series, in which a gas-filled electrical incandescent cathode discharge lamp is connected to each transformer
DEN35786D DE632438C (en)	1931-12-01	1933-10-01	Lighting system

Publications (1)

Publication Number	Publication Date
DK51552C true DK51552C (en)	1936-04-20

Family

ID=34069175

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DK52334D DK52334C (en)	1931-12-01	1934-08-30	Lighting system.
DK51552D DK51552C (en)	1931-12-01	1934-08-30	Lighting system.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DK52334D DK52334C (en)	1931-12-01	1934-08-30	Lighting system.

Country Status (4)

Country	Link
AT (2)	AT142052B (en)
DE (2)	DE632438C (en)
DK (2)	DK52334C (en)
GB (2)	GB426766A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1100169B (en) *	1957-05-20	1961-02-23	Basic Products Corp	Transformer device for starting and operating metal vapor discharge lamps without a starter
DE1097030B (en) *	1958-06-03	1961-01-12	Bbc Brown Boveri & Cie	Arrangement for the operation and ignition of fluorescent lamps with glow electrodes

1933
- 1933-10-01 DE DEN35786D patent/DE632438C/en not_active Expired
- 1933-10-01 DE DEN35788D patent/DE632439C/en not_active Expired
1934
- 1934-08-30 DK DK52334D patent/DK52334C/en active
- 1934-08-30 DK DK51552D patent/DK51552C/en active
- 1934-09-24 AT AT142052D patent/AT142052B/en active
- 1934-09-24 AT AT142053D patent/AT142053B/en active
- 1934-09-25 GB GB27527/34A patent/GB426766A/en not_active Expired
- 1934-09-28 GB GB27850/34A patent/GB424175A/en not_active Expired

Also Published As

Publication number	Publication date
GB426766A (en)	1935-04-09
DE632438C (en)	1936-07-08
AT142053B (en)	1935-06-11
GB424175A (en)	1935-02-15
DK52334C (en)	1936-11-16
AT142052B (en)	1935-06-11
DE632439C (en)	1936-07-08

Publication	Publication Date	Title
CH175511A (en)	1935-02-28	Kötzerspulmaschine.
DK45369C (en)	1932-03-14	Plantemaskine.
DK51552C (en)	1936-04-20	Lighting system.
DK48584C (en)	1934-04-03	Lighting system.
CH182888A (en)	1936-02-29	Lighting system.
DK49103C (en)	1934-08-06	Lighting system.
CH165526A (en)	1933-11-30	Coordinatograph.
CH160127A (en)	1933-02-28	Fitting.
DK49395C (en)	1934-10-15	Lighting system.
DK48724C (en)	1934-05-07	Flashlight.
DK47960C (en)	1933-10-30	Flashlight.
DK46199C (en)	1932-09-19	Espagnolettelaas.
DK46448C (en)	1932-11-07	Gashane.
DK44969C (en)	1931-12-07	Skaglestrop.
ES513Y (en)	1931-12-01	Tshirts.
DK45586C (en)	1932-04-25	Blandingssold.
DK45885C (en)	1932-07-04	Snorlaas.
DK45590C (en)	1932-04-25	Enlinet Gribeskovl.
DK46229C (en)	1932-09-26	Akshæver.
DK46276C (en)	1932-10-03	Bruse.
ES632Y (en)	1932-02-16	Infernillo.
DK46533C (en)	1932-11-21	Gribeskovl.
DK46556C (en)	1932-11-28	Vaterpas.
DK46659C (en)	1932-12-19	Propellog.
DK47036C (en)	1933-03-06	Globusur.