CH208437A - Electric incandescent lamp with a nitrogen gas filling. - Google Patents

Electric incandescent lamp with a nitrogen gas filling.

Info

Publication number: CH208437A
Authority: CH; Switzerland
Prior art keywords: nitrogen gas; incandescent lamp; gas filling; electric incandescent; electric
Prior art date: 1937-11-02

Application number

Other languages

German (de)

Inventor

Gloeilampenfabrieken N Philips

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.)

1937-11-02

Filing date

1938-10-31

Publication date

1940-01-31

1938-10-31 Application filed by Philips Nv filed Critical Philips Nv

1940-01-31 Publication of CH208437A publication Critical patent/CH208437A/en

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
- H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter

CH208437D 1937-11-02 1938-10-31 Electric incandescent lamp with a nitrogen gas filling. CH208437A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL208437X		1937-11-02

Publications (1)

Publication Number	Publication Date
CH208437A true CH208437A (en)	1940-01-31

Family

ID=19778687

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH208437D CH208437A (en)	1937-11-02	1938-10-31	Electric incandescent lamp with a nitrogen gas filling.

Country Status (7)

Country	Link
US (1)	US2203897A (en)
BE (1)	BE430899A (en)
CH (1)	CH208437A (en)
DE (1)	DE711881C (en)
FR (1)	FR845482A (en)
GB (1)	GB520835A (en)
NL (1)	NL51546C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2455394A (en) *	1943-06-29	1948-12-07	Sperry Corp	Accelerometer
US2462837A (en) *	1945-10-08	1949-03-01	Tung Sol Lamp Works Inc	Incandescent lamp
US2489261A (en) *	1948-04-15	1949-11-29	Tung Sol Lamp Works Inc	Metallic filament incandescent electric lamp and the manufacture thereof
DE1015145B (en) *	1953-12-05	1957-09-05	Egyesuelt Izzolampa	Gas-filled electric incandescent lamp, in particular gas-filled incandescent lamp provided with a screen, e.g. Car lamp, and a specific getter
US3519864A (en) *	1966-12-29	1970-07-07	Sylvania Electric Prod	High pressure electric discharge device with barium peroxide getter and getter mounting structure

0
- NL NL51546D patent/NL51546C/xx active
- BE BE430899D patent/BE430899A/xx unknown
1938
- 1938-10-27 US US237365A patent/US2203897A/en not_active Expired - Lifetime
- 1938-10-31 GB GB31517/38A patent/GB520835A/en not_active Expired
- 1938-10-31 FR FR845482D patent/FR845482A/en not_active Expired
- 1938-10-31 CH CH208437D patent/CH208437A/en unknown
- 1938-11-01 DE DEN42618D patent/DE711881C/en not_active Expired

Also Published As

Publication number	Publication date
BE430899A (en)
US2203897A (en)	1940-06-11
FR845482A (en)	1939-08-24
GB520835A (en)	1940-05-06
DE711881C (en)	1941-10-08
NL51546C (en)

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