GB1012102A - Improvements in and relating to methods of manufacturing gas discharge lamps - Google Patents
Improvements in and relating to methods of manufacturing gas discharge lampsInfo
- Publication number
- GB1012102A GB1012102A GB3459463A GB3459463A GB1012102A GB 1012102 A GB1012102 A GB 1012102A GB 3459463 A GB3459463 A GB 3459463A GB 3459463 A GB3459463 A GB 3459463A GB 1012102 A GB1012102 A GB 1012102A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- flushing
- gas
- discharge lamps
- during
- 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
- 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
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Discharge Lamp (AREA)
Abstract
A method of manufacturing gas discharge lamps wherein a glass tube which is provided at both ends with an opening through which the interior of the tube communicates with the space outside the tube is freed from unwanted gases during a thermal treatment by a flushing process in which a flow of inert gas enters through one opening and leaves the tube through the other, is characterized in that during the flushing process the tube communicates openly via the other of the openings with the open air and in that the pressure in the tube exceeds the atmospheric pressure. The flushing gas may be nitrogen or a rare gas, and the final filling may be one or more rare gases, mercury vapour or sodium vapour. If a rare gas is required in the final filling it is preferable to use only such rare gas in the last phase of the flushing process. In the manufacture of a curved lamp, flushing is continued during the bending process. The method enables the lamp manufacturing machine to be simplified since no ducts need be connected to one of the tube openings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL282922 | 1962-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1012102A true GB1012102A (en) | 1965-12-08 |
Family
ID=19754083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3459463A Expired GB1012102A (en) | 1962-09-05 | 1963-09-02 | Improvements in and relating to methods of manufacturing gas discharge lamps |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5134224B1 (en) |
| AT (1) | AT240980B (en) |
| ES (1) | ES291315A1 (en) |
| FI (1) | FI41977B (en) |
| GB (1) | GB1012102A (en) |
| SE (2) | SE309812B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133466U (en) * | 1976-04-07 | 1977-10-11 | ||
| JPS5561188U (en) * | 1978-10-20 | 1980-04-25 |
-
1963
- 1963-09-02 AT AT705263A patent/AT240980B/en active
- 1963-09-02 SE SE957063A patent/SE309812B/xx unknown
- 1963-09-02 GB GB3459463A patent/GB1012102A/en not_active Expired
- 1963-09-03 ES ES291315A patent/ES291315A1/en not_active Expired
- 1963-09-03 FI FI168463A patent/FI41977B/fi active
- 1963-09-03 SE SE962763A patent/SE309811B/xx unknown
- 1963-09-04 JP JP38046520A patent/JPS5134224B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5134224B1 (en) | 1976-09-25 |
| AT240980B (en) | 1965-06-25 |
| SE309811B (en) | 1969-04-08 |
| SE309812B (en) | 1969-04-08 |
| FI41977B (en) | 1969-12-31 |
| ES291315A1 (en) | 1964-01-01 |
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