FR560310A - Gas-filled incandescent electric lamp with helically wound filament - Google Patents
Gas-filled incandescent electric lamp with helically wound filamentInfo
- Publication number
- FR560310A FR560310A FR560310DA FR560310A FR 560310 A FR560310 A FR 560310A FR 560310D A FR560310D A FR 560310DA FR 560310 A FR560310 A FR 560310A
- Authority
- FR
- France
- Prior art keywords
- gas
- helically wound
- electric lamp
- incandescent electric
- wound filament
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/16—Electric connection thereto
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL209051X | 1922-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR560310A true FR560310A (en) | 1923-10-02 |
Family
ID=19778722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR560310D Expired FR560310A (en) | 1922-12-23 | 1922-12-23 | Gas-filled incandescent electric lamp with helically wound filament |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1637034A (en) |
| FR (1) | FR560310A (en) |
| GB (1) | GB209051A (en) |
| NL (1) | NL13404C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848642A (en) * | 1954-11-19 | 1958-08-19 | Westinghouse Electric Corp | Filament mounting |
| US4032809A (en) * | 1966-03-21 | 1977-06-28 | Westinghouse Electric Corporation | Tantalum carbide or tantalum-alloy carbide filament mounting and method |
| US3470413A (en) * | 1966-04-28 | 1969-09-30 | Sylvania Electric Prod | Projector lamp filament support |
| US3383539A (en) * | 1967-02-06 | 1968-05-14 | Sylvania Electric Prod | Projection lamp |
-
1922
- 1922-12-23 NL NL23460A patent/NL13404C/xx active
- 1922-12-23 FR FR560310D patent/FR560310A/en not_active Expired
-
1923
- 1923-11-29 GB GB30116/23A patent/GB209051A/en not_active Expired
- 1923-12-04 US US678515A patent/US1637034A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1637034A (en) | 1927-07-26 |
| NL13404C (en) | 1925-08-15 |
| GB209051A (en) | 1924-05-15 |
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