DE1248799B - - Google Patents
Info
- Publication number
- DE1248799B DE1248799B DENDAT1248799D DE1248799DA DE1248799B DE 1248799 B DE1248799 B DE 1248799B DE NDAT1248799 D DENDAT1248799 D DE NDAT1248799D DE 1248799D A DE1248799D A DE 1248799DA DE 1248799 B DE1248799 B DE 1248799B
- Authority
- DE
- Germany
- 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.)
- Pending
Links
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
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Furnace Details (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US159100A US3287591A (en) | 1961-12-13 | 1961-12-13 | Tantalum carbide incandescent lamp and method of manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1248799B true DE1248799B (en) |
Family
ID=22571087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1248799D Pending DE1248799B (en) | 1961-12-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3287591A (en) |
| BE (1) | BE625922A (en) |
| DE (1) | DE1248799B (en) |
| GB (1) | GB961640A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032809A (en) * | 1966-03-21 | 1977-06-28 | Westinghouse Electric Corporation | Tantalum carbide or tantalum-alloy carbide filament mounting and method |
| JPS464029Y1 (en) * | 1968-05-28 | 1971-02-12 | ||
| US3548244A (en) * | 1968-07-01 | 1970-12-15 | British Lighting Ind Ltd | Lamp having twin filaments and integral filament legs mounted in a bridge |
| US3792224A (en) * | 1971-07-19 | 1974-02-12 | Westinghouse Electric Corp | Method for making non-tangling beaded filament coils |
| BE788518A (en) * | 1971-09-09 | 1973-03-07 | Philips Nv | ELECTRICAL INCANDESCENCE LAMP |
| GB2192751B (en) * | 1986-07-14 | 1991-02-13 | Denki Kagaku Kogyo Kk | Method of making a thermionic cathode structure. |
| US5148080A (en) * | 1990-01-16 | 1992-09-15 | Hilux Development | Incandescent lamp filament incorporating hafnium |
| CN1096105C (en) * | 1995-10-20 | 2002-12-11 | 皇家菲利浦电子有限公司 | Electric lamp |
| DE102005057084A1 (en) * | 2005-11-30 | 2007-05-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Incandescent filament with melting point exceeding that of tungsten, used in quartz halogen bulb, contains metal carbide in which carbon content is sub-stoichiometric |
| JP2010530604A (en) * | 2007-06-20 | 2010-09-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Tantalum carbide filament bulb and method for manufacturing the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US479360A (en) * | 1892-07-19 | Henry green | ||
| US2175345A (en) * | 1935-07-12 | 1939-10-10 | Gen Electric | Electric gaseous discharge device |
| US2542656A (en) * | 1941-01-31 | 1951-02-20 | Hartford Nat Bank & Trust Co | Indirectly heated cathode |
| BE476887A (en) * | 1942-08-10 | |||
| US2434478A (en) * | 1943-12-22 | 1948-01-13 | Westinghouse Electric Corp | Incandescent electric lamp and method |
| US2716714A (en) * | 1951-08-20 | 1955-08-30 | Westinghouse Electric Corp | Incandescent electric lamp |
| US2961568A (en) * | 1957-11-14 | 1960-11-22 | Gen Electric | Filament joint for incandescent lamps |
| US3022438A (en) * | 1959-09-10 | 1962-02-20 | Polaroid Corp | Electric lamps |
-
0
- DE DENDAT1248799D patent/DE1248799B/de active Pending
- BE BE625922D patent/BE625922A/xx unknown
-
1961
- 1961-12-13 US US159100A patent/US3287591A/en not_active Expired - Lifetime
-
1962
- 1962-12-11 GB GB46795/62A patent/GB961640A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3287591A (en) | 1966-11-22 |
| BE625922A (en) | |
| GB961640A (en) | 1964-06-24 |