IT1017841B - DEVICE FOR CURVING THE STRAIGHT VOLUCERS OF FLUORESCENT LAMPS IN A RING FORM - Google Patents
DEVICE FOR CURVING THE STRAIGHT VOLUCERS OF FLUORESCENT LAMPS IN A RING FORMInfo
- 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
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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48087392A JPS5218513B2 (en) | 1973-08-02 | 1973-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1017841B true IT1017841B (en) | 1977-08-10 |
Family
ID=13913601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT25901/74A IT1017841B (en) | 1973-08-02 | 1974-08-02 | DEVICE FOR CURVING THE STRAIGHT VOLUCERS OF FLUORESCENT LAMPS IN A RING FORM |
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)
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)
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 |
-
1973
- 1973-08-02 JP JP48087392A patent/JPS5218513B2/ja not_active Expired
-
1974
- 1974-07-23 GB GB32452/74A patent/GB1479951A/en not_active Expired
- 1974-07-24 US US491271A patent/US3920434A/en not_active Expired - Lifetime
- 1974-07-30 CA CA205,927A patent/CA1022341A/en not_active Expired
- 1974-07-31 DE DE2436933A patent/DE2436933C3/en not_active Expired
- 1974-07-31 FR FR7426583A patent/FR2239758B1/fr not_active Expired
- 1974-08-01 NL NL7410380.A patent/NL157579B/en not_active IP Right Cessation
- 1974-08-02 IT IT25901/74A patent/IT1017841B/en active
Also Published As
Publication number | Publication date |
---|---|
NL157579B (en) | 1978-08-15 |
DE2436933C3 (en) | 1979-05-03 |
US3920434A (en) | 1975-11-18 |
NL7410380A (en) | 1975-02-04 |
DE2436933A1 (en) | 1975-02-20 |
GB1479951A (en) | 1977-07-13 |
JPS5035968A (en) | 1975-04-04 |
JPS5218513B2 (en) | 1977-05-21 |
CA1022341A (en) | 1977-12-13 |
FR2239758B1 (en) | 1976-10-22 |
FR2239758A1 (en) | 1975-02-28 |
DE2436933B2 (en) | 1978-08-31 |
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