DE3123442C2 - - Google Patents
Info
- Publication number
- DE3123442C2 DE3123442C2 DE3123442A DE3123442A DE3123442C2 DE 3123442 C2 DE3123442 C2 DE 3123442C2 DE 3123442 A DE3123442 A DE 3123442A DE 3123442 A DE3123442 A DE 3123442A DE 3123442 C2 DE3123442 C2 DE 3123442C2
- Authority
- DE
- Germany
- Prior art keywords
- coil
- electrode coil
- core
- flat core
- flat
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 17
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000011733 molybdenum Substances 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
Landscapes
- Discharge Lamp (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8133572A GB2100516B (en) | 1978-06-05 | 1979-06-04 | Switch unit |
| DE19813123442 DE3123442A1 (de) | 1981-06-12 | 1981-06-12 | Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung |
| US06/385,013 US4506187A (en) | 1981-06-12 | 1982-06-04 | Lamp filament structure, and method of its manufacture |
| JP57097873A JPS57212765A (en) | 1981-06-12 | 1982-06-09 | Filament coil for lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813123442 DE3123442A1 (de) | 1981-06-12 | 1981-06-12 | Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3123442A1 DE3123442A1 (de) | 1982-12-30 |
| DE3123442C2 true DE3123442C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-06-29 |
Family
ID=6134605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813123442 Granted DE3123442A1 (de) | 1978-06-05 | 1981-06-12 | Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung |
Country Status (3)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19527653A1 (de) * | 1995-07-28 | 1997-01-30 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrodenwendel für Entladungslampen und Verfahren zur Herstellung einer derartigen Elektrodenwendel |
| US6465939B1 (en) * | 1999-12-02 | 2002-10-15 | Lcd Lighting, Inc. | Robust lamp filament |
| CA2474797A1 (en) * | 2002-03-05 | 2003-09-12 | Mineta Company Ltd. | Coil filament |
| US7462991B2 (en) * | 2005-02-16 | 2008-12-09 | Elmet Technologies, Inc. | Fluorescent lamp cathode and method of making cathodes |
| EP1983546A1 (en) * | 2007-04-20 | 2008-10-22 | PANalytical B.V. | X-ray cathode and tube |
| US8610350B2 (en) * | 2009-12-15 | 2013-12-17 | Osram Gesellschaft Mit Beschraenkter Haftung | Electrode structures for discharge lamps |
| CN102832087B (zh) * | 2012-07-30 | 2016-03-09 | 安徽海洋照明电器有限公司 | 钢芯线取代钼丝的钨灯丝制作工艺 |
| US12198922B2 (en) * | 2020-03-13 | 2025-01-14 | Applied Materials, Inc. | Lamp filament having a pitch gradient and method of making |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL19275C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1925-09-21 | |||
| US2479193A (en) * | 1946-07-08 | 1949-08-16 | Gen Electric | Articulated cathode |
| US2922916A (en) * | 1953-11-10 | 1960-01-26 | Duro Test Corp | Electrode for fluorescent lamps |
| US3294125A (en) * | 1963-11-14 | 1966-12-27 | Westinghouse Electric Corp | Electrode coil and method |
| BE785860A (fr) * | 1971-07-06 | 1973-01-05 | Gen Electric | Electrode a filament et procede pour la fabrication de celle-ci |
| NL7301829A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-02-09 | 1974-08-13 | ||
| US3908251A (en) * | 1974-04-11 | 1975-09-30 | Gte Sylvania Inc | Method of making beaded filament coil |
-
1981
- 1981-06-12 DE DE19813123442 patent/DE3123442A1/de active Granted
-
1982
- 1982-06-04 US US06/385,013 patent/US4506187A/en not_active Expired - Lifetime
- 1982-06-09 JP JP57097873A patent/JPS57212765A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4506187A (en) | 1985-03-19 |
| DE3123442A1 (de) | 1982-12-30 |
| JPH0259583B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-12-12 |
| JPS57212765A (en) | 1982-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: H01J 61/067 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |