FR856136A - Incandescent electric lamp comprising a gaseous atmosphere under a pressure greater than 1 atmosphere - Google Patents

Incandescent electric lamp comprising a gaseous atmosphere under a pressure greater than 1 atmosphere

Info

Publication number
FR856136A
FR856136A FR856136DA FR856136A FR 856136 A FR856136 A FR 856136A FR 856136D A FR856136D A FR 856136DA FR 856136 A FR856136 A FR 856136A
Authority
FR
France
Prior art keywords
atmosphere
pressure greater
electric lamp
incandescent electric
gaseous
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR856136A publication Critical patent/FR856136A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/34—Double wall vessels
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR856136D 1938-06-14 1939-06-13 Incandescent electric lamp comprising a gaseous atmosphere under a pressure greater than 1 atmosphere Expired FR856136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL523589X 1938-06-14

Publications (1)

Publication Number Publication Date
FR856136A true FR856136A (en) 1940-05-30

Family

ID=19787030

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856136D Expired FR856136A (en) 1938-06-14 1939-06-13 Incandescent electric lamp comprising a gaseous atmosphere under a pressure greater than 1 atmosphere

Country Status (5)

Country Link
US (1) US2180141A (en)
BE (1) BE434866A (en)
FR (1) FR856136A (en)
GB (1) GB523589A (en)
NL (1) NL88356C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204085A (en) * 1962-08-15 1965-08-31 Lockheed Aircraft Corp Heating device

Also Published As

Publication number Publication date
BE434866A (en)
US2180141A (en) 1939-11-14
GB523589A (en) 1940-07-17
NL88356C (en)

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