GB431651A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB431651A
GB431651A GB1221/34A GB122134A GB431651A GB 431651 A GB431651 A GB 431651A GB 1221/34 A GB1221/34 A GB 1221/34A GB 122134 A GB122134 A GB 122134A GB 431651 A GB431651 A GB 431651A
Authority
GB
United Kingdom
Prior art keywords
relating
walls
electric discharge
general electric
discharge devices
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
GB1221/34A
Other languages
English (en)
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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
Priority to NL41741D priority Critical patent/NL41741C/xx
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1221/34A priority patent/GB431651A/en
Priority to US750A priority patent/US2030437A/en
Priority to FR784009D priority patent/FR784009A/fr
Priority to DEG89554D priority patent/DE647009C/de
Publication of GB431651A publication Critical patent/GB431651A/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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/34—Double-wall vessels or containers

Landscapes

  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
GB1221/34A 1934-01-12 1934-01-12 Improvements in or relating to electric discharge devices Expired GB431651A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL41741D NL41741C (fr) 1934-01-12
GB1221/34A GB431651A (en) 1934-01-12 1934-01-12 Improvements in or relating to electric discharge devices
US750A US2030437A (en) 1934-01-12 1935-01-07 Electric discharge device
FR784009D FR784009A (fr) 1934-01-12 1935-01-11 Remplissage externe pour dispositifs à décharge électrique
DEG89554D DE647009C (de) 1934-01-12 1935-01-12 Verfahren zum Herstellen von doppelwandigen Hochdruckmetalldampfentladungslampen mit Gluehelektroden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1221/34A GB431651A (en) 1934-01-12 1934-01-12 Improvements in or relating to electric discharge devices

Publications (1)

Publication Number Publication Date
GB431651A true GB431651A (en) 1935-07-12

Family

ID=9718224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1221/34A Expired GB431651A (en) 1934-01-12 1934-01-12 Improvements in or relating to electric discharge devices

Country Status (5)

Country Link
US (1) US2030437A (fr)
DE (1) DE647009C (fr)
FR (1) FR784009A (fr)
GB (1) GB431651A (fr)
NL (1) NL41741C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714492A (en) * 1971-05-03 1973-01-30 Gte Sylvania Inc Dc fluorescent lamp with improved efficiency
FR2386135A1 (fr) * 1977-03-30 1978-10-27 Gte Sylvania Inc Perfectionnement apporte aux lampes a vapeur de sodium a haute pression
US4598225A (en) * 1983-02-25 1986-07-01 Gte Products Corporation Electric lamp with high outer-envelope to inner-envelope wall-thickness ratio

Also Published As

Publication number Publication date
NL41741C (fr)
DE647009C (de) 1937-06-25
FR784009A (fr) 1935-07-20
US2030437A (en) 1936-02-11

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