FR887635A - Improvements made to bulbs for incandescent electric lamps or discharge tubes - Google Patents

Improvements made to bulbs for incandescent electric lamps or discharge tubes

Info

Publication number
FR887635A
FR887635A FR887635DA FR887635A FR 887635 A FR887635 A FR 887635A FR 887635D A FR887635D A FR 887635DA FR 887635 A FR887635 A FR 887635A
Authority
FR
France
Prior art keywords
bulbs
improvements made
discharge tubes
electric lamps
incandescent electric
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 FR887635A publication Critical patent/FR887635A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/049—Re-forming tubes or rods by pressing
    • C03B23/0493—Re-forming tubes or rods by pressing in a longitudinal direction, e.g. for upsetting or extrusion
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/207—Uniting glass rods, glass tubes, or hollow glassware
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • 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
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR887635D 1941-11-12 1942-11-11 Improvements made to bulbs for incandescent electric lamps or discharge tubes Expired FR887635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL245531X 1941-11-12

Publications (1)

Publication Number Publication Date
FR887635A true FR887635A (en) 1943-11-18

Family

ID=19780815

Family Applications (1)

Application Number Title Priority Date Filing Date
FR887635D Expired FR887635A (en) 1941-11-12 1942-11-11 Improvements made to bulbs for incandescent electric lamps or discharge tubes

Country Status (7)

Country Link
US (1) US2465797A (en)
BE (1) BE447918A (en)
CH (1) CH245531A (en)
DE (1) DE892021C (en)
FR (1) FR887635A (en)
GB (1) GB606488A (en)
NL (1) NL60853C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771589A (en) * 1954-12-14 1956-11-20 Sylvania Electric Prod End cap for fluorescent lamp
US3036236A (en) * 1959-03-30 1962-05-22 Westinghouse Electric Corp Electric lamp and method of manufacture
NL300048A (en) * 1963-11-01 1900-01-01

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US266447A (en) * 1882-10-24 Thomas a
US2279907A (en) * 1940-09-12 1942-04-14 Hygrade Sylvania Corp Electric discharge lamp
US2385340A (en) * 1943-01-02 1945-09-25 Sylvania Electric Prod Electrical device

Also Published As

Publication number Publication date
CH245531A (en) 1946-11-15
GB606488A (en) 1948-08-13
BE447918A (en)
NL60853C (en)
US2465797A (en) 1949-03-29
DE892021C (en) 1953-08-20

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