NL177538C - 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
NL177538C
NL177538C NLAANVRAGE7400812,A NL7400812A NL177538C NL 177538 C NL177538 C NL 177538C NL 7400812 A NL7400812 A NL 7400812A NL 177538 C NL177538 C NL 177538C
Authority
NL
Netherlands
Prior art keywords
lamp
making
light bulb
halogen light
tungsten halogen
Prior art date
Application number
NLAANVRAGE7400812,A
Other languages
Dutch (nl)
Other versions
NL177538B (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.)
Filing date
Publication date
Application filed by Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Publication of NL7400812A publication Critical patent/NL7400812A/xx
Publication of NL177538B publication Critical patent/NL177538B/en
Application granted granted Critical
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)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (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 NL177538B (en) 1985-05-01
NL177538C true 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
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

Also Published As

Publication number Publication date
SE391836B (en) 1977-02-28
AU6468174A (en) 1975-07-24
DE2402136B2 (en) 1978-04-13
IE38743L (en) 1974-07-19
ZA74275B (en) 1975-05-28
FR2214969B1 (en) 1977-06-10
DK140963B (en) 1979-12-10
NL177538B (en) 1985-05-01
FR2214969A1 (en) 1974-08-19
LU69186A1 (en) 1974-04-08
IE38743B1 (en) 1978-03-29
CA986980A (en) 1976-04-06
JPS5818744B2 (en) 1983-04-14
NL7400812A (en) 1974-07-23
DE2402136A1 (en) 1974-07-25
BE809912A (en) 1974-05-16
US3902091A (en) 1975-08-26
JPS49104482A (en) 1974-10-03
DE2402136C3 (en) 1978-12-07
GB1456242A (en) 1976-11-24
DK140963C (en) 1980-05-27
IT1003464B (en) 1976-06-10

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee