FR458877A - Filaments of incandescent lamps - Google Patents

Filaments of incandescent lamps

Info

Publication number
FR458877A
FR458877A FR458877A FR458877DA FR458877A FR 458877 A FR458877 A FR 458877A FR 458877 A FR458877 A FR 458877A FR 458877D A FR458877D A FR 458877DA FR 458877 A FR458877 A FR 458877A
Authority
FR
France
Prior art keywords
filaments
incandescent lamps
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
FR458877A
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR458877A publication Critical patent/FR458877A/en
Expired legal-status Critical Current

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
    • H01K3/02—Manufacture of incandescent bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR458877A 1914-09-11 1913-06-06 Filaments of incandescent lamps Expired FR458877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US458877XA 1914-09-11 1914-09-11

Publications (1)

Publication Number Publication Date
FR458877A true FR458877A (en) 1913-10-21

Family

ID=32586531

Family Applications (3)

Application Number Title Priority Date Filing Date
FR19410A Expired FR19410E (en) 1914-09-11 Filaments of incandescent lamps
FR458877A Expired FR458877A (en) 1914-09-11 1913-06-06 Filaments of incandescent lamps
FR20302A Expired FR20302E (en) 1914-09-11 1915-09-09 Filaments of incandescent lamps

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR19410A Expired FR19410E (en) 1914-09-11 Filaments of incandescent lamps

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR20302A Expired FR20302E (en) 1914-09-11 1915-09-09 Filaments of incandescent lamps

Country Status (3)

Country Link
FR (3) FR458877A (en)
GB (2) GB191406439A (en)
NL (1) NL8044C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7804040A (en) * 1978-04-17 1979-10-19 Philips Nv ELECTRIC MIXED LIGHT LAMP.
US4920624A (en) * 1988-12-07 1990-05-01 Texas Instruments Incorporated Method and apparatus for making a double helix thermostat metal spring
CN1934675A (en) * 2004-03-17 2007-03-21 皇家飞利浦电子股份有限公司 A filament lamp comprising two coiled filaments and a lamp assembly
DE102008059292A1 (en) * 2008-11-27 2010-06-02 Osram Gesellschaft mit beschränkter Haftung Incandescent lamp has filament arranged in lamp bulb, where filament has multiple filament sections which are connected with each other, and each filament section forms coiled section

Also Published As

Publication number Publication date
GB191421435A (en) 1915-06-24
FR20302E (en) 1917-08-01
NL8044C (en)
FR19410E (en) 1915-01-29
GB191406439A (en) 1920-08-26

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