FR566941A - Improvement to incandescent lamps with two filaments of different light intensity - Google Patents

Improvement to incandescent lamps with two filaments of different light intensity

Info

Publication number
FR566941A
FR566941A FR566941DA FR566941A FR 566941 A FR566941 A FR 566941A FR 566941D A FR566941D A FR 566941DA FR 566941 A FR566941 A FR 566941A
Authority
FR
France
Prior art keywords
filaments
improvement
light intensity
different light
incandescent lamps
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
Other languages
French (fr)
Inventor
Gotthilf Eidenbenz
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 filed Critical
Application granted granted Critical
Publication of FR566941A publication Critical patent/FR566941A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
FR566941D 1923-01-30 1923-06-01 Improvement to incandescent lamps with two filaments of different light intensity Expired FR566941A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE566941X 1923-01-30

Publications (1)

Publication Number Publication Date
FR566941A true FR566941A (en) 1924-02-22

Family

ID=6567697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR566941D Expired FR566941A (en) 1923-01-30 1923-06-01 Improvement to incandescent lamps with two filaments of different light intensity

Country Status (1)

Country Link
FR (1) FR566941A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214255A (en) * 1991-01-29 1993-05-25 Fleischhauer Eugene T Switch mechanism for a multiple filament electric lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214255A (en) * 1991-01-29 1993-05-25 Fleischhauer Eugene T Switch mechanism for a multiple filament electric lamp
US5278366A (en) * 1991-01-29 1994-01-11 Fleischhauer Eugene T Switch mechanism for a multiple filament electric lamp

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