GB1228529A - - Google Patents
Info
- Publication number
- GB1228529A GB1228529A GB1228529DA GB1228529A GB 1228529 A GB1228529 A GB 1228529A GB 1228529D A GB1228529D A GB 1228529DA GB 1228529 A GB1228529 A GB 1228529A
- Authority
- GB
- United Kingdom
- Prior art keywords
- foil
- inlead
- thicker
- areas
- untreated
- 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
- 239000011888 foil Substances 0.000 abstract 5
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 238000000866 electrolytic etching Methods 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- 238000003466 welding Methods 0.000 abstract 1
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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/28—Manufacture of leading-in conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/32—Seals for leading-in conductors
- H01J5/38—Pinched-stem or analogous seals
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,228,529. Foil metal to glass seal. GENERAL ELECTRIC CO. 25 April, 1969 [6 June, 1968], No. 21260/69. Heading C1M. An inlead-foil-electrode assembly for sealing into a vitreous envelope (especially quartz) comprises a foil I (e.g. of tungsten or molybdenum) which has been etched all over and has feathered edges except for zones 8 and 9 at the ends which are thicker and untreated and taper into the thickness of the foil at 81 and 91. The inlead and electrode (11 and 12, Fig. 3, not shown) have spade-shaped terminals which correspond in shape with the end zones 8 and 9 to which they are attached by welding. The foil may be made by immersing a metal sheet in an electrolytic etching bath whilst supported at its ends by members having plastic shields which fit over appropriately dimensioned areas of the sheet and protect them from the action of the etching liquid. These areas thus remain untreated and are thicker than the treated foil (see Fig. 1, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73491068A | 1968-06-06 | 1968-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1228529A true GB1228529A (en) | 1971-04-15 |
Family
ID=24953550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1228529D Expired GB1228529A (en) | 1968-06-06 | 1969-04-25 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3582704A (en) |
| BE (1) | BE733313A (en) |
| FR (1) | FR2011903A1 (en) |
| GB (1) | GB1228529A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7403204A (en) * | 1974-03-11 | 1975-09-15 | Philips Nv | ELECTRIC LAMP. |
| US4396857A (en) * | 1980-07-01 | 1983-08-02 | General Electric Company | Arc tube construction |
| DE3766938D1 (en) * | 1986-10-20 | 1991-02-07 | Philips Nv | HIGH PRESSURE DISCHARGE LAMP. |
| KR100247669B1 (en) * | 1992-07-14 | 2000-03-15 | 요트.게.아. 롤페즈 | Electric lamp |
| JP3648184B2 (en) * | 2001-09-07 | 2005-05-18 | 株式会社小糸製作所 | Discharge lamp arc tube and method of manufacturing the same |
| US8277274B2 (en) * | 2002-11-07 | 2012-10-02 | Advanced Lighting Technologies, Inc. | Apparatus and methods for use of refractory abhesives in protection of metallic foils and leads |
| US7107676B2 (en) * | 2003-11-05 | 2006-09-19 | Fridrich Elmer G | One piece foliated leads for sealing in light sources |
| US20070262718A1 (en) * | 2006-05-12 | 2007-11-15 | Aurongzeb Deeder M | Electrode-foil interface structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH258444A (en) * | 1949-03-05 | 1948-11-30 | Mineral S A | Gas discharge lamp. |
| GB713828A (en) * | 1951-09-01 | 1954-08-18 | British Thomson Houston Co Ltd | Improvements in lead-in conductors for electric lamps and the like |
| US2966607A (en) * | 1959-05-26 | 1960-12-27 | Duro Test Corp | High pressure short arc lamps and method of making same |
| DE1106418B (en) * | 1959-12-21 | 1961-05-10 | Deutsche Elektronik Gmbh | Gas discharge lamp with quartz bulb |
| US3250941A (en) * | 1963-03-01 | 1966-05-10 | Gen Electric | Discharge lamp manufacture |
-
1968
- 1968-06-06 US US734910A patent/US3582704A/en not_active Expired - Lifetime
-
1969
- 1969-04-25 GB GB1228529D patent/GB1228529A/en not_active Expired
- 1969-05-13 FR FR6915436A patent/FR2011903A1/fr not_active Withdrawn
- 1969-05-20 BE BE733313D patent/BE733313A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2011903A1 (en) | 1970-03-13 |
| DE1927796A1 (en) | 1970-07-02 |
| BE733313A (en) | 1969-11-03 |
| US3582704A (en) | 1971-06-01 |
| DE1927796B2 (en) | 1977-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |