GB975539A - Fabrication of incandescent lamps - Google Patents
Fabrication of incandescent lampsInfo
- Publication number
- GB975539A GB975539A GB29776/62A GB2977662A GB975539A GB 975539 A GB975539 A GB 975539A GB 29776/62 A GB29776/62 A GB 29776/62A GB 2977662 A GB2977662 A GB 2977662A GB 975539 A GB975539 A GB 975539A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- filament
- fill
- pool
- tube
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 238000007789 sealing Methods 0.000 abstract 3
- 229910052786 argon Inorganic materials 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 239000003507 refrigerant Substances 0.000 abstract 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052740 iodine Inorganic materials 0.000 abstract 1
- 239000011630 iodine Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- 238000007665 sagging Methods 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/22—Exhausting, degassing, filling, or cleaning vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
975,539. Electric incandescent lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 2, 1962 [Aug. 9, 1961], No. 29776/62. Heading H1F. A tubular filament lamp having a gas fill at approximately atmospheric pressure is made by forming a pool of liquefied fill gas within the envelope containing the filament and vaporizing the gas while heating the unsealed end of the envelope and sealing this. The tube 1 is first supported in clamps 5 and a stream of fill gas, e.g. argon, is passed into the tube from one end while the other end is heated to seal the filament support 23 therein. The sealed end is then immersed in a refrigerating bath while the flow of fill gas is continued so that a pool of liquefied gas is formed. The tube is then replaced in clamps 5 and the open end heated, the pool of liquefied gas 21 being allowed to evaporate, if necessary with the assistance of heat. When only a drop of the liquified gas remains, the sealing jaws 6 are closed, sealing the second filament support therein. When argon is used as the fill gas, the refrigerant may be liquid nitrogen although other refrigerants such as liquid helium or neon may be used. Other inert gases or nitrogen may be used as the fill gas and gasified halogen such as iodine may be included. The filament 3 may be of tungsten connected by lead-in wires to small sheets of molybdenum foil in turn attached to lead-in wires 22, 23. Tantalum spacers 4 may be arranged at intervals along the filament to prevent sagging.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US130307A US3162499A (en) | 1961-08-09 | 1961-08-09 | Fabrication of incandescent lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975539A true GB975539A (en) | 1964-11-18 |
Family
ID=22444069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29776/62A Expired GB975539A (en) | 1961-08-09 | 1962-08-02 | Fabrication of incandescent lamps |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3162499A (en) |
| GB (1) | GB975539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121418A2 (en) * | 1983-03-30 | 1984-10-10 | GTE Products Corporation | High pressure tipless tungsten halogen lamp |
| WO2006077437A1 (en) * | 2005-01-24 | 2006-07-27 | The University Of Bath | An optical assembly of a hollow core fibre gas cell spliced to fibre ends and methods of its production |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095416A (en) * | 1964-09-18 | |||
| US3409342A (en) * | 1966-12-23 | 1968-11-05 | Gen Electric | Method of heat sealing flashlamps containing combustible gas mixtures |
| US3759601A (en) * | 1971-03-05 | 1973-09-18 | Sylvania Electric Prod | Lamp assembly and method of making high silica lamps |
| US3788724A (en) * | 1971-12-07 | 1974-01-29 | F Schenkels | Method of manufacturing gas-filled lamps |
| US4509928A (en) * | 1983-03-30 | 1985-04-09 | Gte Products Corporation | Method of making high pressure tungsten halogen lamps |
| US5213536A (en) * | 1991-01-02 | 1993-05-25 | Gte Products Corporation | Filamented lamp manufacture method |
| US6682381B1 (en) * | 2000-07-31 | 2004-01-27 | General Electric Company | Analysis of mercury in fluorescent lamps by cold spotting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2417361A (en) * | 1944-03-07 | 1947-03-11 | Herzog Carl | Apparatus for producing cold cathode fluorescent lamps or the like |
| US2870586A (en) * | 1957-03-01 | 1959-01-27 | Gen Electric | Exhausting and gas filling machines for lamps |
| US2900771A (en) * | 1958-01-28 | 1959-08-25 | Gen Electric | Electric lamp gas filling and sealing method and apparatus |
-
1961
- 1961-08-09 US US130307A patent/US3162499A/en not_active Expired - Lifetime
-
1962
- 1962-08-02 GB GB29776/62A patent/GB975539A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0121418A2 (en) * | 1983-03-30 | 1984-10-10 | GTE Products Corporation | High pressure tipless tungsten halogen lamp |
| EP0121418A3 (en) * | 1983-03-30 | 1985-08-14 | Gte Products Corporation | High pressure tipless tungsten halogen lamp |
| WO2006077437A1 (en) * | 2005-01-24 | 2006-07-27 | The University Of Bath | An optical assembly of a hollow core fibre gas cell spliced to fibre ends and methods of its production |
| EP2309609A3 (en) * | 2005-01-24 | 2011-07-27 | The University of Bath | An optical fibre Raman cell and corresponding method of manufacturing |
| US8079763B2 (en) | 2005-01-24 | 2011-12-20 | University Of Bath | Optical assembly of a hollow core fibre gas cell spliced to fibre ends and methods of its production |
Also Published As
| Publication number | Publication date |
|---|---|
| US3162499A (en) | 1964-12-22 |
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