BE447471A - - Google Patents
Info
- Publication number
- BE447471A BE447471A BE447471DA BE447471A BE 447471 A BE447471 A BE 447471A BE 447471D A BE447471D A BE 447471DA BE 447471 A BE447471 A BE 447471A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
- H01H33/83—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas wherein the contacts are opened by the flow of air or gas
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL229955X | 1942-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447471A true BE447471A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) |
Family
ID=19779875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447471D BE447471A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) | 1942-02-19 |
Country Status (7)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL146065B (nl) * | 1948-04-23 | Du Pont | Menginrichting voor het mengen van uit vaste deeltjes bestaande stoffen. | |
| NL87728C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) * | 1956-02-15 | |||
| GB884854A (en) * | 1957-07-01 | 1961-12-20 | Ass Elect Ind | Improvements in air or gas blast electric circuit-breakers |
| DE2317499C3 (de) * | 1973-04-04 | 1975-12-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Druckgasschalter |
| US3794798A (en) * | 1973-04-27 | 1974-02-26 | F Trayer | Submersible switch and double toggle, power transmission member operating mechanism therefore |
| US3889084A (en) * | 1973-09-19 | 1975-06-10 | I T E Corp | Contact for high voltage gas blast circuit breaker with time-delayed opening |
| US4336520A (en) * | 1980-07-25 | 1982-06-22 | Trayer Frank C | Method and apparatus for short circuit protection of high voltage distribution systems |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1898900A (en) * | 1925-05-18 | 1933-02-21 | Ruppel Sigwart | Method and apparatus for interrupting high tension circuits |
| BE416391A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) * | 1935-07-13 | |||
| CH190816A (de) * | 1936-09-12 | 1937-05-15 | Oerlikon Maschf | Schalter mit Lichtbogenlöschung durch ein Druckmittel. |
| US2163558A (en) * | 1937-04-30 | 1939-06-20 | Westinghouse Electric & Mfg Co | Circuit breaker |
| GB510502A (en) * | 1937-12-29 | 1939-08-02 | British Thomson Houston Co Ltd | Improvements in and relating to gas blast electric switchgear |
| NL61773C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) * | 1938-05-27 | |||
| BE435345A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) * | 1938-05-27 | |||
| CH214012A (de) * | 1939-11-01 | 1941-03-31 | Oerlikon Maschf | Elektrischer Schalter mit Lichtbogenlöschung und Bewegung des Düsenkontaktes durch ein strömendes Druckmittel. |
-
0
- NL NL57563D patent/NL57563C/xx active
- BE BE447471D patent/BE447471A/xx unknown
- NL NL62336D patent/NL62336C/xx active
-
1942
- 1942-10-05 CH CH229955D patent/CH229955A/de unknown
- 1942-10-09 DE DEN46076D patent/DE757030C/de not_active Expired
- 1942-10-19 FR FR886989D patent/FR886989A/fr not_active Expired
-
1946
- 1946-01-21 GB GB2009/46A patent/GB606860A/en not_active Expired
- 1946-02-15 US US647864A patent/US2500429A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB606860A (en) | 1948-08-20 |
| NL57563C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) | |
| CH229955A (de) | 1943-11-30 |
| US2500429A (en) | 1950-03-14 |
| DE757030C (de) | 1952-08-21 |
| FR886989A (fr) | 1943-10-29 |
| NL62336C (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) |