NO134274C - - Google Patents
Info
- Publication number
- NO134274C NO134274C NO2650/72A NO265072A NO134274C NO 134274 C NO134274 C NO 134274C NO 2650/72 A NO2650/72 A NO 2650/72A NO 265072 A NO265072 A NO 265072A NO 134274 C NO134274 C NO 134274C
- Authority
- NO
- Norway
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
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
- H01H33/703—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2698771 | 1971-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO134274B NO134274B (en) | 1976-05-31 |
| NO134274C true NO134274C (en) | 1976-09-08 |
Family
ID=11220694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2650/72A NO134274C (en) | 1971-07-30 | 1972-07-25 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3816684A (en) |
| BE (1) | BE786948A (en) |
| BR (1) | BR7205080D0 (en) |
| CA (1) | CA973598A (en) |
| CH (1) | CH546476A (en) |
| DE (1) | DE2236566A1 (en) |
| ES (1) | ES405375A1 (en) |
| FR (1) | FR2148031B1 (en) |
| GB (1) | GB1400523A (en) |
| NO (1) | NO134274C (en) |
| SE (1) | SE372652B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH648689A5 (en) * | 1979-08-15 | 1985-03-29 | Bbc Brown Boveri & Cie | CIRCUIT BREAKER. |
| CA1243342A (en) * | 1983-08-24 | 1988-10-18 | Fumihiro Endo | Gas-insulated circuit breaker |
| JPS61188825A (en) * | 1985-02-15 | 1986-08-22 | 株式会社日立製作所 | Buffer type gas breaker |
| JP2771305B2 (en) * | 1990-03-13 | 1998-07-02 | 株式会社日立製作所 | Gas circuit breaker |
| DE10156535C1 (en) * | 2001-11-14 | 2003-06-26 | Siemens Ag | breakers |
| EP2415060B1 (en) * | 2009-03-30 | 2017-07-26 | ABB Research Ltd. | Circuit breaker |
| CN106841573A (en) * | 2017-04-12 | 2017-06-13 | 中铁西北科学研究院有限公司 | A kind of debris flows simulation experimental rig and test method |
-
1972
- 1972-07-25 SE SE7209697A patent/SE372652B/xx unknown
- 1972-07-25 NO NO2650/72A patent/NO134274C/no unknown
- 1972-07-26 US US00275219A patent/US3816684A/en not_active Expired - Lifetime
- 1972-07-26 FR FR7226857A patent/FR2148031B1/fr not_active Expired
- 1972-07-26 DE DE2236566A patent/DE2236566A1/en active Pending
- 1972-07-28 BR BR5080/72A patent/BR7205080D0/en unknown
- 1972-07-28 CA CA148,239A patent/CA973598A/en not_active Expired
- 1972-07-28 BE BE786948A patent/BE786948A/en unknown
- 1972-07-29 ES ES405375A patent/ES405375A1/en not_active Expired
- 1972-07-31 GB GB3571372A patent/GB1400523A/en not_active Expired
- 1972-07-31 CH CH1134072A patent/CH546476A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA973598A (en) | 1975-08-26 |
| FR2148031B1 (en) | 1977-06-17 |
| DE2236566A1 (en) | 1973-02-08 |
| CH546476A (en) | 1974-02-28 |
| FR2148031A1 (en) | 1973-03-11 |
| NO134274B (en) | 1976-05-31 |
| GB1400523A (en) | 1975-07-16 |
| BE786948A (en) | 1973-01-29 |
| US3816684A (en) | 1974-06-11 |
| SE372652B (en) | 1974-12-23 |
| BR7205080D0 (en) | 1973-06-28 |
| ES405375A1 (en) | 1975-07-16 |