FR2000389A1 - Lampe a incandescence a filament en carbure de tantale et a atmosphere d'azote - Google Patents

Lampe a incandescence a filament en carbure de tantale et a atmosphere d'azote

Info

Publication number
FR2000389A1
FR2000389A1 FR6900760A FR6900760A FR2000389A1 FR 2000389 A1 FR2000389 A1 FR 2000389A1 FR 6900760 A FR6900760 A FR 6900760A FR 6900760 A FR6900760 A FR 6900760A FR 2000389 A1 FR2000389 A1 FR 2000389A1
Authority
FR
France
Prior art keywords
nitrogen atmosphere
incandescent lamp
tantalum carbide
carbide filament
filament
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.)
Withdrawn
Application number
FR6900760A
Other languages
English (en)
French (fr)
Inventor
A.Johansen Herman
Corth Richard
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2000389A1 publication Critical patent/FR2000389A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
    • 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
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon And Carbon Compounds (AREA)
FR6900760A 1968-01-18 1969-01-17 Lampe a incandescence a filament en carbure de tantale et a atmosphere d'azote Withdrawn FR2000389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69896368A 1968-01-18 1968-01-18
US69896268A 1968-01-18 1968-01-18

Publications (1)

Publication Number Publication Date
FR2000389A1 true FR2000389A1 (fr) 1969-09-05

Family

ID=27106313

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6900760A Withdrawn FR2000389A1 (fr) 1968-01-18 1969-01-17 Lampe a incandescence a filament en carbure de tantale et a atmosphere d'azote

Country Status (4)

Country Link
BE (1) BE726858A (ja)
DE (1) DE1901826A1 (ja)
FR (1) FR2000389A1 (ja)
NL (1) NL6900628A (ja)

Also Published As

Publication number Publication date
NL6900628A (ja) 1969-07-22
DE1901826A1 (de) 1969-09-04
BE726858A (ja) 1969-06-16

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Legal Events

Date Code Title Description
RE Withdrawal of published application