GB318933A - - Google Patents
Info
- Publication number
- GB318933A GB318933A GB27746/29A GB2774629A GB318933A GB 318933 A GB318933 A GB 318933A GB 27746/29 A GB27746/29 A GB 27746/29A GB 2774629 A GB2774629 A GB 2774629A GB 318933 A GB318933 A GB 318933A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- supports
- loop
- stem
- secured
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper 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
- 239000003870 refractory metal Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 125000006850 spacer group Chemical group 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
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/18—Supports; Vibration-damping arrangements
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US305499A US1756882A (en) | 1928-09-12 | 1928-09-12 | Filament-tensioning means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB318933A true GB318933A (enrdf_load_stackoverflow) | 1930-12-11 |
Family
ID=23181051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27746/29A Expired GB318933A (enrdf_load_stackoverflow) | 1928-09-12 | 1929-09-12 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1756882A (enrdf_load_stackoverflow) |
| FR (1) | FR681436A (enrdf_load_stackoverflow) |
| GB (1) | GB318933A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7705526B2 (en) | 2005-02-18 | 2010-04-27 | Lg Electronics Inc. | Lamp with twisted filament structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2431139A (en) * | 1943-06-23 | 1947-11-18 | Westinghouse Electric Corp | Magnetron |
-
1928
- 1928-09-12 US US305499A patent/US1756882A/en not_active Expired - Lifetime
-
1929
- 1929-09-07 FR FR681436D patent/FR681436A/fr not_active Expired
- 1929-09-12 GB GB27746/29A patent/GB318933A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7705526B2 (en) | 2005-02-18 | 2010-04-27 | Lg Electronics Inc. | Lamp with twisted filament structure |
Also Published As
| Publication number | Publication date |
|---|---|
| FR681436A (fr) | 1930-05-14 |
| US1756882A (en) | 1930-04-29 |
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