FR727891A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR727891A
FR727891A FR727891DA FR727891A FR 727891 A FR727891 A FR 727891A FR 727891D A FR727891D A FR 727891DA FR 727891 A FR727891 A FR 727891A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
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 FR727891A publication Critical patent/FR727891A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/26—Details or accessories

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discharge Lamp (AREA)
FR727891D 1930-12-06 1931-12-05 Electric discharge tube Expired FR727891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE397162X 1930-12-06

Publications (1)

Publication Number Publication Date
FR727891A true FR727891A (en) 1932-06-25

Family

ID=6397163

Family Applications (2)

Application Number Title Priority Date Filing Date
FR397162D Expired FR397162A (en) 1908-08-03 1908-12-08 Method and device for attaching the cord to the indicator rod for steam engines, internal combustion engines, etc.
FR727891D Expired FR727891A (en) 1930-12-06 1931-12-05 Electric discharge tube

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR397162D Expired FR397162A (en) 1908-08-03 1908-12-08 Method and device for attaching the cord to the indicator rod for steam engines, internal combustion engines, etc.

Country Status (3)

Country Link
BE (1) BE384760A (en)
FR (2) FR397162A (en)
GB (1) GB397162A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE457033B (en) * 1985-05-23 1988-11-21 Lumalampan Ab KOMPAKTLYSROER
US4786841A (en) * 1987-06-22 1988-11-22 Gte Products Corporation Low-pressure arc discharge lamp having increased surface brightness

Also Published As

Publication number Publication date
BE384760A (en)
FR397162A (en) 1909-04-30
GB397162A (en) 1933-08-08

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