BE527259A - - Google Patents
Info
- Publication number
- BE527259A BE527259A BE527259DA BE527259A BE 527259 A BE527259 A BE 527259A BE 527259D A BE527259D A BE 527259DA BE 527259 A BE527259 A BE 527259A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/50—Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL762790X | 1953-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE527259A true BE527259A (en:Method) |
Family
ID=19827523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE527259D BE527259A (en:Method) | 1953-03-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2824993A (en:Method) |
| BE (1) | BE527259A (en:Method) |
| DE (1) | DE1006965B (en:Method) |
| FR (1) | FR1097442A (en:Method) |
| GB (1) | GB762790A (en:Method) |
| NL (1) | NL177259C (en:Method) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046772B (de) | 1953-04-22 | 1958-12-18 | Patra Patent Treuhand | Roehrenfoermige elektrische Lampe zum Betrieb in explosionsgefaehrdeten Raeumen |
| DE1254764B (de) | 1961-07-24 | 1967-11-23 | Ulrich W Doering | Mit Edelgas und einem Zusatz von Quecksilber-dampf gefuellte Leuchtstoffroehrenlampe |
| US4221988A (en) * | 1977-01-23 | 1980-09-09 | U.S. Philips Corporation | Low pressure gas discharge lamp having fibers evenly distributed between the electrodes |
| US4182975A (en) * | 1978-07-11 | 1980-01-08 | Westinghouse Electric Corp. | Compact fluorescent lamp having a partitioned envelope, and method of manufacture |
| US4173730A (en) * | 1978-07-11 | 1979-11-06 | Westinghouse Electric Corp. | Compact fluorescent lamp unit having integral circuit means for DC operation |
| US4184101A (en) * | 1978-07-11 | 1980-01-15 | Westinghouse Electric Corp. | Compact fluorescent lamp having a partitioned envelope |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1467187A (en) * | 1921-08-06 | 1923-09-04 | Air Reduction | Luminescent tube |
| US1788951A (en) * | 1927-12-19 | 1931-01-13 | Manhattan Electrical Supply Co | High-power luminous electrical discharge tube |
| GB329639A (en) * | 1928-12-18 | 1930-05-19 | Albert Edward Chapman | Improvements in and relating to luminous electric discharge tubes |
| FR810206A (fr) * | 1936-09-02 | 1937-03-18 | Procédé pour l'obtention d'un éclairage scintillant dans les tubes lumineux aux gaz rares | |
| CH290444A (de) * | 1950-05-05 | 1953-04-30 | Graber Hans | Mit Leuchtstoffen versehene Gas- und Dampfentladungslampe. |
-
0
- NL NLAANVRAGE7805016,A patent/NL177259C/xx active
- BE BE527259D patent/BE527259A/xx unknown
-
1954
- 1954-03-09 US US414944A patent/US2824993A/en not_active Expired - Lifetime
- 1954-03-26 GB GB8933/54A patent/GB762790A/en not_active Expired
- 1954-03-27 DE DEN8682A patent/DE1006965B/de active Pending
- 1954-03-29 FR FR1097442D patent/FR1097442A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1097442A (fr) | 1955-07-05 |
| GB762790A (en) | 1956-12-05 |
| DE1006965B (de) | 1957-04-25 |
| NL177259C (nl) | |
| US2824993A (en) | 1958-02-25 |