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FR946789A - éléments de verre façonnés pour ampoules de tubes thermioniques - Google Patents

éléments de verre façonnés pour ampoules de tubes thermioniques

Info

Publication number
FR946789A
FR946789A FR946789DA FR946789A FR 946789 A FR946789 A FR 946789A FR 946789D A FR946789D A FR 946789DA FR 946789 A FR946789 A FR 946789A
Authority
FR
France
Prior art keywords
ampoules
shaped glass
glass elements
thermionic tube
thermionic
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
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
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 claimed from GB883745A external-priority patent/GB593500A/en
Application filed by MO Valve Co Ltd filed Critical MO Valve Co Ltd
Application granted granted Critical
Publication of FR946789A publication Critical patent/FR946789A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • 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
    • H01K3/08—Manufacture of mounts or stems

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR946789D 1945-04-10 1947-05-14 éléments de verre façonnés pour ampoules de tubes thermioniques Expired FR946789A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB883745A GB593500A (en) 1945-04-10 Improvements in and methods for producing shaped glass parts

Publications (1)

Publication Number Publication Date
FR946789A true FR946789A (fr) 1949-06-14

Family

ID=9860173

Family Applications (2)

Application Number Title Priority Date Filing Date
FR946787D Expired FR946787A (fr) 1945-04-10 1947-05-14 Pièces de verre façonnées
FR946789D Expired FR946789A (fr) 1945-04-10 1947-05-14 éléments de verre façonnés pour ampoules de tubes thermioniques

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR946787D Expired FR946787A (fr) 1945-04-10 1947-05-14 Pièces de verre façonnées

Country Status (5)

Country Link
US (1) US2545873A (fr)
BE (2) BE473414A (fr)
FR (2) FR946787A (fr)
GB (1) GB593712A (fr)
NL (2) NL68256C (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US544248A (en) * 1895-08-06 William cutler
US872530A (en) * 1907-04-18 1907-12-03 George H Meeker Method of sealing metal in glass.
US1266614A (en) * 1915-01-06 1918-05-21 Westinghouse Electric & Mfg Co Seal.
US1395963A (en) * 1919-05-19 1921-11-01 Chemical Foundation Inc Method of and apparatus for forming glass tubes
US2190788A (en) * 1936-01-24 1940-02-20 Arcturus Dev Company Metal tube construction
US2318652A (en) * 1938-12-30 1943-05-11 Westinghouse Electric & Mfg Co Making lamp stems

Also Published As

Publication number Publication date
NL68256C (fr)
BE473413A (fr)
GB593712A (en) 1947-10-23
NL68255C (fr)
FR946787A (fr) 1949-06-14
BE473414A (fr)
US2545873A (en) 1951-03-20

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