IT1017841B - Dispositivo per curvare gli in volucri rettilinei di lampade fluorescenti in una forma anulare - Google Patents

Dispositivo per curvare gli in volucri rettilinei di lampade fluorescenti in una forma anulare

Info

Publication number
IT1017841B
IT1017841B IT25901/74A IT2590174A IT1017841B IT 1017841 B IT1017841 B IT 1017841B IT 25901/74 A IT25901/74 A IT 25901/74A IT 2590174 A IT2590174 A IT 2590174A IT 1017841 B IT1017841 B IT 1017841B
Authority
IT
Italy
Prior art keywords
volucers
curving
straight
fluorescent lamps
ring form
Prior art date
Application number
IT25901/74A
Other languages
English (en)
Italian (it)
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Application granted granted Critical
Publication of IT1017841B publication Critical patent/IT1017841B/it

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
    • 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
    • C03B23/06—Re-forming tubes or rods by bending
    • C03B23/065—Re-forming tubes or rods by bending in only one plane, e.g. for making circular neon tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
IT25901/74A 1973-08-02 1974-08-02 Dispositivo per curvare gli in volucri rettilinei di lampade fluorescenti in una forma anulare IT1017841B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48087392A JPS5218513B2 (de) 1973-08-02 1973-08-02

Publications (1)

Publication Number Publication Date
IT1017841B true IT1017841B (it) 1977-08-10

Family

ID=13913601

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25901/74A IT1017841B (it) 1973-08-02 1974-08-02 Dispositivo per curvare gli in volucri rettilinei di lampade fluorescenti in una forma anulare

Country Status (8)

Country Link
US (1) US3920434A (de)
JP (1) JPS5218513B2 (de)
CA (1) CA1022341A (de)
DE (1) DE2436933C3 (de)
FR (1) FR2239758B1 (de)
GB (1) GB1479951A (de)
IT (1) IT1017841B (de)
NL (1) NL157579B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5289283A (en) * 1976-01-20 1977-07-26 Matsushita Electronics Corp Process and apparatus for manufacturing fluorescent lamps
JPS5675230U (de) * 1979-11-16 1981-06-19
US5041152A (en) * 1987-03-26 1991-08-20 Kabushiki Kaisha Toshiba Apparatus for bending tubular glass
JPH03117020U (de) * 1990-03-13 1991-12-04

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE478391A (de) * 1945-01-26
US2611216A (en) * 1949-03-25 1952-09-23 Cons Electric Lamp Company Method of and machine for making circular fluorescent lamps
US3215518A (en) * 1960-07-16 1965-11-02 Philips Corp Device for bending a straight tube into a circular shape

Also Published As

Publication number Publication date
DE2436933A1 (de) 1975-02-20
US3920434A (en) 1975-11-18
JPS5218513B2 (de) 1977-05-21
NL157579B (nl) 1978-08-15
DE2436933C3 (de) 1979-05-03
FR2239758B1 (de) 1976-10-22
JPS5035968A (de) 1975-04-04
DE2436933B2 (de) 1978-08-31
NL7410380A (nl) 1975-02-04
GB1479951A (en) 1977-07-13
CA1022341A (en) 1977-12-13
FR2239758A1 (de) 1975-02-28

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