GB1505749A - Method of manufacturing an electric lamp - Google Patents
Method of manufacturing an electric lampInfo
- Publication number
- GB1505749A GB1505749A GB1706975A GB1706975A GB1505749A GB 1505749 A GB1505749 A GB 1505749A GB 1706975 A GB1706975 A GB 1706975A GB 1706975 A GB1706975 A GB 1706975A GB 1505749 A GB1505749 A GB 1505749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- supports
- filament
- section
- april
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
- H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp
Landscapes
- Resistance Heating (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1505749 Electric incandescent lamp manufacture PATENT - TREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 24 April 1975 [26 April 1974] 17069/75 Heading H1F A halogen incandescent lamp, for example, having a tubular envelope 1 with a longitudinally extending coiled filament 4 supported by a number of tungsten filament supports 9 having an inner coiled section 10 of diameter larger than the filament and an outer coiled section 11 which resiliently engages the inner wall of the envelope, is manufactured by a method including the steps of reducing the diameter of the outer section 11, e.g. by threading it on to a plug of smaller diameter, inserting it into the envelope and releasing the tension to enable the outer section to expand into retentive engagement with the envelope. After withdrawing the plug the mount comprising the filament 4, sealing foils 5, 6 and lead-in wires 7, 8 is threaded through the supports mounted in the envelope. In order to more firmly locate the supports in the envelope, the region of the envelope adjacent the supports may be heated by an annular burner, the supports being impressed as at 23 due to their resilience in the softened envelope wall. The envelope may be straight or U-shaped, the latter being formed by heating and bending a straight tubular envelope.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742420342 DE2420342A1 (en) | 1974-04-26 | 1974-04-26 | HALOGEN BULB AND METHOD OF MANUFACTURING |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1505749A true GB1505749A (en) | 1978-03-30 |
Family
ID=5914091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1706975A Expired GB1505749A (en) | 1974-04-26 | 1975-04-24 | Method of manufacturing an electric lamp |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2420342A1 (en) |
FR (1) | FR2280200A1 (en) |
GB (1) | GB1505749A (en) |
IT (1) | IT1036208B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384235A (en) | 1979-05-22 | 1983-05-17 | Thorn Emi Limited | Linear filament assembly with refractory insulating support rod for halogen lamp |
AT384689B (en) * | 1983-04-08 | 1987-12-28 | Tungsram Reszvenytarsasag | METHOD FOR END-CLOSING LONG MINIATURE HALOGENID LAMPS AND LONG MINIATURE HALOGENID LAMPS |
EP0949659A2 (en) * | 1998-04-09 | 1999-10-13 | General Electric Company | Lamp filament |
US6781291B2 (en) | 2001-06-27 | 2004-08-24 | Asm America Inc. | Filament support for lamp |
US6856078B2 (en) | 2001-06-27 | 2005-02-15 | Asm America, Inc. | Lamp filament design |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8325715U1 (en) * | 1983-09-07 | 1985-02-21 | Radium-Elektrizitäts-Gesellschaft mbH, 5272 Wipperfürth | TWO-SIDED BASE BULB |
CN104599938B (en) * | 2013-10-30 | 2017-06-20 | 北京强度环境研究所 | A kind of centrifuge radiant heating quartz lamp |
-
1974
- 1974-04-26 DE DE19742420342 patent/DE2420342A1/en not_active Ceased
-
1975
- 1975-04-14 FR FR7511572A patent/FR2280200A1/en active Granted
- 1975-04-24 GB GB1706975A patent/GB1505749A/en not_active Expired
- 1975-04-24 IT IT6806575A patent/IT1036208B/en active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384235A (en) | 1979-05-22 | 1983-05-17 | Thorn Emi Limited | Linear filament assembly with refractory insulating support rod for halogen lamp |
AT384689B (en) * | 1983-04-08 | 1987-12-28 | Tungsram Reszvenytarsasag | METHOD FOR END-CLOSING LONG MINIATURE HALOGENID LAMPS AND LONG MINIATURE HALOGENID LAMPS |
EP0949659A2 (en) * | 1998-04-09 | 1999-10-13 | General Electric Company | Lamp filament |
EP0949659A3 (en) * | 1998-04-09 | 1999-12-29 | General Electric Company | Lamp filament |
US6469426B1 (en) | 1998-04-09 | 2002-10-22 | General Electric Company | Incandescent lamp having a helical coil that comprises multiple sections of different pitches |
US6781291B2 (en) | 2001-06-27 | 2004-08-24 | Asm America Inc. | Filament support for lamp |
US6856078B2 (en) | 2001-06-27 | 2005-02-15 | Asm America, Inc. | Lamp filament design |
US6980734B2 (en) | 2001-06-27 | 2005-12-27 | Asm America, Inc. | Lamp filament design |
NL1025055C2 (en) * | 2002-12-23 | 2004-11-24 | Asm America | Quartz lamp for semiconductor processing reactor, sets ratio of distance between sleeve-contacting portions of filament supports in transparent sleeve and inner diameter of sleeve within prescribed range |
Also Published As
Publication number | Publication date |
---|---|
FR2280200A1 (en) | 1976-02-20 |
DE2420342A1 (en) | 1975-11-06 |
IT1036208B (en) | 1979-10-30 |
FR2280200B3 (en) | 1978-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |