NL7410380A - DEVICE FOR CONVERTING OR BENDING TUBE-SHAPED HOUSINGS FOR FLUORESCENT LAMPS INTO A RING SHAPE. - Google Patents

DEVICE FOR CONVERTING OR BENDING TUBE-SHAPED HOUSINGS FOR FLUORESCENT LAMPS INTO A RING SHAPE.

Info

Publication number
NL7410380A
NL7410380A NL7410380A NL7410380A NL7410380A NL 7410380 A NL7410380 A NL 7410380A NL 7410380 A NL7410380 A NL 7410380A NL 7410380 A NL7410380 A NL 7410380A NL 7410380 A NL7410380 A NL 7410380A
Authority
NL
Netherlands
Prior art keywords
converting
ring shape
fluorescent lamps
bending tube
shaped housings
Prior art date
Application number
NL7410380A
Other languages
Dutch (nl)
Other versions
NL157579B (en
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
Publication of NL7410380A publication Critical patent/NL7410380A/en
Publication of NL157579B publication Critical patent/NL157579B/en

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)
NL7410380.A 1973-08-02 1974-08-01 DEVICE FOR BENDING STRAIGHT TUBULAR SHAPES OF FLUORESCENT PIPES INTO A RING SHAPE. NL157579B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
NL7410380A true NL7410380A (en) 1975-02-04
NL157579B NL157579B (en) 1978-08-15

Family

ID=13913601

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7410380.A NL157579B (en) 1973-08-02 1974-08-01 DEVICE FOR BENDING STRAIGHT TUBULAR SHAPES OF FLUORESCENT PIPES INTO A RING SHAPE.

Country Status (8)

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

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 (en) * 1979-11-16 1981-06-19
US5041152A (en) * 1987-03-26 1991-08-20 Kabushiki Kaisha Toshiba Apparatus for bending tubular glass
JPH03117020U (en) * 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 (en) * 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
DE2436933B2 (en) 1978-08-31
NL157579B (en) 1978-08-15
IT1017841B (en) 1977-08-10
DE2436933C3 (en) 1979-05-03
DE2436933A1 (en) 1975-02-20
FR2239758B1 (en) 1976-10-22
CA1022341A (en) 1977-12-13
US3920434A (en) 1975-11-18
JPS5035968A (en) 1975-04-04
FR2239758A1 (en) 1975-02-28
GB1479951A (en) 1977-07-13
JPS5218513B2 (en) 1977-05-21

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: MATSUSH ELECT