GB512791A - Improvements in or relating to gas-filled incandescent electric lamps - Google Patents

Improvements in or relating to gas-filled incandescent electric lamps

Info

Publication number
GB512791A
GB512791A GB8018/38A GB801838A GB512791A GB 512791 A GB512791 A GB 512791A GB 8018/38 A GB8018/38 A GB 8018/38A GB 801838 A GB801838 A GB 801838A GB 512791 A GB512791 A GB 512791A
Authority
GB
United Kingdom
Prior art keywords
bulb
per cent
lamp
glass
filled
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8018/38A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Claude Paz et Visseaux SA
Original Assignee
Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
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 Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva filed Critical Societe Anonyme pour les Applications de lElectricite et des Gaz Rares Etablissement Claude Paz et Silva
Publication of GB512791A publication Critical patent/GB512791A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/34—Double wall vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)
GB8018/38A 1938-01-27 1938-03-15 Improvements in or relating to gas-filled incandescent electric lamps Expired GB512791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH512791X 1938-01-27

Publications (1)

Publication Number Publication Date
GB512791A true GB512791A (en) 1939-09-26

Family

ID=4517538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8018/38A Expired GB512791A (en) 1938-01-27 1938-03-15 Improvements in or relating to gas-filled incandescent electric lamps

Country Status (5)

Country Link
BE (1) BE432141A (fr)
CH (1) CH207792A (fr)
FR (1) FR849075A (fr)
GB (1) GB512791A (fr)
NL (1) NL56036C (fr)

Also Published As

Publication number Publication date
CH207792A (fr) 1939-11-30
BE432141A (fr)
FR849075A (fr) 1939-11-14
NL56036C (fr)

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