BE809912A - IMPROVED INCANDESCENCE LAMP - Google Patents

IMPROVED INCANDESCENCE LAMP

Info

Publication number: BE809912A
Authority: BE; Belgium
Prior art keywords: improved; incandescence lamp; incandescence; lamp; improved incandescence
Prior art date: 1973-01-19

Application number

BE139957A

Other languages

French (fr)

Inventor

D R Mason

J M Rees

J R Coaton

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

1974-01-18

Publication date

1974-05-16

1974-01-18 Application filed filed Critical

1974-05-16 Publication of BE809912A publication Critical patent/BE809912A/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)

BE139957A 1973-01-19 1974-01-18 IMPROVED INCANDESCENCE LAMP BE809912A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
BE809912A true BE809912A (en)	1974-05-16

Family

ID=9749149

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE139957A BE809912A (en)	1973-01-19	1974-01-18	IMPROVED INCANDESCENCE 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
US4185922A (en) *	1977-01-17	1980-01-29	Thorn Electrical Industries Limited	Method of introducing fluorine into a lamp
US4256988A (en) *	1977-01-17	1981-03-17	Thorn Lighting Limited	Incandescent halogen lamp with protective envelope coating
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 ZA ZA00740275A patent/ZA74275B/en unknown
- 1974-01-15 CA CA190,139A patent/CA986980A/en not_active Expired
- 1974-01-17 DE DE2402136A patent/DE2402136C3/en not_active Expired
- 1974-01-17 DK DK24674AA patent/DK140963B/en not_active Application Discontinuation
- 1974-01-17 SE SE7400620A patent/SE391836B/en unknown
- 1974-01-17 LU LU69186A patent/LU69186A1/xx unknown
- 1974-01-18 BE BE139957A patent/BE809912A/en unknown
- 1974-01-18 US US434381A patent/US3902091A/en not_active Expired - Lifetime
- 1974-01-19 JP JP49008913A patent/JPS5818744B2/en not_active Expired
- 1974-01-21 NL NLAANVRAGE7400812,A patent/NL177538C/en not_active IP Right Cessation
- 1974-01-21 FR FR7401912A patent/FR2214969B1/fr not_active Expired
- 1974-01-21 IT IT19617/74A patent/IT1003464B/en active

Also Published As

Publication number	Publication date
SE391836B (en)	1977-02-28
FR2214969B1 (en)	1977-06-10
IE38743L (en)	1974-07-19
NL177538C (en)	1985-10-01
DE2402136A1 (en)	1974-07-25
IT1003464B (en)	1976-06-10
CA986980A (en)	1976-04-06
NL7400812A (en)	1974-07-23
ZA74275B (en)	1975-05-28
DK140963C (en)	1980-05-27
NL177538B (en)	1985-05-01
DE2402136C3 (en)	1978-12-07
IE38743B1 (en)	1978-03-29
DK140963B (en)	1979-12-10
JPS49104482A (en)	1974-10-03
LU69186A1 (en)	1974-04-08
DE2402136B2 (en)	1978-04-13
US3902091A (en)	1975-08-26
AU6468174A (en)	1975-07-24
GB1456242A (en)	1976-11-24
FR2214969A1 (en)	1974-08-19
JPS5818744B2 (en)	1983-04-14

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