NL177538B - ELECTRIC TUNGSTEN HALOGEN LIGHT BULB AND METHOD FOR MAKING THIS LAMP. - Google Patents

ELECTRIC TUNGSTEN HALOGEN LIGHT BULB AND METHOD FOR MAKING THIS LAMP.

Info

Publication number: NL177538B
Authority: NL; Netherlands
Prior art keywords: lamp; making; light bulb; halogen light; tungsten halogen
Prior art date: 1973-01-19

Application number

NLAANVRAGE7400812,A

Other languages

Dutch (nl)

Other versions

NL177538C (en

NL7400812A (en

Original Assignee

Thorn Lighting Ltd

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.)

1973-01-19

Filing date

1974-01-21

Publication date

1985-05-01

1974-01-21 Application filed by Thorn Lighting Ltd filed Critical Thorn Lighting Ltd

1974-07-23 Publication of NL7400812A publication Critical patent/NL7400812A/xx

1985-05-01 Publication of NL177538B publication Critical patent/NL177538B/en

1985-10-01 Application granted granted Critical

1985-10-01 Publication of NL177538C publication Critical patent/NL177538C/en

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Pigments, Carbon Blacks, Or Wood Stains (AREA)
Paper (AREA)
Vessels And Coating Films For Discharge Lamps (AREA)
Chemically Coating (AREA)
Chemical Treatment Of Metals (AREA)

NLAANVRAGE7400812,A 1973-01-19 1974-01-21 ELECTRIC TUNGSTEN HALOGEN LIGHT BULB AND METHOD FOR MAKING THIS LAMP. NL177538C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB295273A GB1456242A (en)	1973-01-19	1973-01-19	Incandescent lamp

Publications (3)

Publication Number	Publication Date
NL7400812A NL7400812A (en)	1974-07-23
NL177538B true NL177538B (en)	1985-05-01
NL177538C NL177538C (en)	1985-10-01

Family

ID=9749149

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7400812,A NL177538C (en)	1973-01-19	1974-01-21	ELECTRIC TUNGSTEN HALOGEN LIGHT BULB AND METHOD FOR MAKING THIS LAMP.

Country Status (14)

Country	Link
US (1)	US3902091A (en)
JP (1)	JPS5818744B2 (en)
BE (1)	BE809912A (en)
CA (1)	CA986980A (en)
DE (1)	DE2402136C3 (en)
DK (1)	DK140963B (en)
FR (1)	FR2214969B1 (en)
GB (1)	GB1456242A (en)
IE (1)	IE38743B1 (en)
IT (1)	IT1003464B (en)
LU (1)	LU69186A1 (en)
NL (1)	NL177538C (en)
SE (1)	SE391836B (en)
ZA (1)	ZA74275B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3982046A (en) *	1973-01-19	1976-09-21	Thorn Lighting Limited	Incandescent lamps
US4256988A (en) *	1977-01-17	1981-03-17	Thorn Lighting Limited	Incandescent halogen lamp with protective envelope coating
US4185922A (en) *	1977-01-17	1980-01-29	Thorn Electrical Industries Limited	Method of introducing fluorine into a lamp
US4288713A (en) *	1979-11-23	1981-09-08	Gte Products Corporation	Lamp having opaque coating
US5473226A (en) *	1993-11-16	1995-12-05	Osram Sylvania Inc.	Incandescent lamp having hardglass envelope with internal barrier layer
DE4410968A1 (en) *	1994-03-29	1995-10-05	Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh	High pressure mercury lamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL37602C (en) *	1931-12-18	1936-03-16
US2393469A (en) *	1942-08-03	1946-01-22	Corning Glass Works	Fluorescent glass and lamp made therefrom

1973
- 1973-01-19 GB GB295273A patent/GB1456242A/en not_active Expired
1974
- 1974-01-14 IE IE78/74A patent/IE38743B1/en unknown
- 1974-01-15 CA CA190,139A patent/CA986980A/en not_active Expired
- 1974-01-15 ZA ZA00740275A patent/ZA74275B/en unknown
- 1974-01-17 DE DE2402136A patent/DE2402136C3/en not_active Expired
- 1974-01-17 LU LU69186A patent/LU69186A1/xx unknown
- 1974-01-17 SE SE7400620A patent/SE391836B/en unknown
- 1974-01-17 DK DK24674AA patent/DK140963B/en not_active Application Discontinuation
- 1974-01-18 US US434381A patent/US3902091A/en not_active Expired - Lifetime
- 1974-01-18 BE BE139957A patent/BE809912A/en unknown
- 1974-01-19 JP JP49008913A patent/JPS5818744B2/en not_active Expired
- 1974-01-21 IT IT19617/74A patent/IT1003464B/en active
- 1974-01-21 FR FR7401912A patent/FR2214969B1/fr not_active Expired
- 1974-01-21 NL NLAANVRAGE7400812,A patent/NL177538C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
JPS5818744B2 (en)	1983-04-14
DK140963B (en)	1979-12-10
SE391836B (en)	1977-02-28
DE2402136A1 (en)	1974-07-25
NL177538C (en)	1985-10-01
DK140963C (en)	1980-05-27
FR2214969A1 (en)	1974-08-19
IT1003464B (en)	1976-06-10
GB1456242A (en)	1976-11-24
DE2402136C3 (en)	1978-12-07
JPS49104482A (en)	1974-10-03
BE809912A (en)	1974-05-16
AU6468174A (en)	1975-07-24
IE38743B1 (en)	1978-03-29
IE38743L (en)	1974-07-19
ZA74275B (en)	1975-05-28
US3902091A (en)	1975-08-26
DE2402136B2 (en)	1978-04-13
FR2214969B1 (en)	1977-06-10
NL7400812A (en)	1974-07-23
LU69186A1 (en)	1974-04-08
CA986980A (en)	1976-04-06

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IT8023007A0 (en)	1980-06-26	HALOGEN, INCANDESCENT LAMP.
NL181158C (en)	1987-06-16	ELECTRIC BULB AND METHOD FOR MANUFACTURING THIS BULB.
NL7512405A (en)	1976-07-02	METAL HALOGEN LAMP AND PROCESS FOR MANUFACTURE THEREOF.
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Legal Events

Date	Code	Title
1981-02-25	BC	A request for examination has been filed
1985-01-01	A85	Still pending on 85-01-01
1992-09-16	V1	Lapsed because of non-payment of the annual fee