FR61791E - Improvements to liquid jet blow-off switches - Google Patents
Improvements to liquid jet blow-off switchesInfo
- Publication number
- FR61791E FR61791E FR61791DA FR61791E FR 61791 E FR61791 E FR 61791E FR 61791D A FR61791D A FR 61791DA FR 61791 E FR61791 E FR 61791E
- Authority
- FR
- France
- Prior art keywords
- switches
- liquid jet
- jet blow
- blow
- liquid
- 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
- 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
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/75—Liquid-break switches, e.g. oil-break
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41612A US2539175A (en) | 1948-07-30 | 1948-07-30 | Liquid blast interrupter for electric breakers |
US169981A US2545334A (en) | 1950-06-23 | 1950-06-23 | Electric circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
FR61791E true FR61791E (en) | 1955-05-17 |
Family
ID=26718339
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR991488D Expired FR991488A (en) | 1948-07-30 | 1949-07-29 | Improvements to liquid jet blow-off switches |
FR61791D Expired FR61791E (en) | 1948-07-30 | 1951-06-20 | Improvements to liquid jet blow-off switches |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR991488D Expired FR991488A (en) | 1948-07-30 | 1949-07-29 | Improvements to liquid jet blow-off switches |
Country Status (3)
Country | Link |
---|---|
US (1) | US2539175A (en) |
FR (2) | FR991488A (en) |
GB (2) | GB668650A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2667556A (en) * | 1950-06-14 | 1954-01-26 | Westinghouse Electric Corp | Circuit interrupter |
US2717293A (en) * | 1953-01-23 | 1955-09-06 | Gen Electric | Electric circuit interrupter |
US2752459A (en) * | 1953-04-27 | 1956-06-26 | Allis Chalmers Mfg Co | Circuit breaker with arc restraining members in fluid supply passageways |
US2806111A (en) * | 1954-04-26 | 1957-09-10 | Westinghouse Electric Corp | Circuit interrupters |
US3900946A (en) * | 1973-10-25 | 1975-08-26 | Mc Graw Edison Co | Method for making arc extinguishing chamber |
US8445805B2 (en) * | 2011-01-07 | 2013-05-21 | Michael David Glaser | Vacuum switch with pre-insertion contact |
KR20240095336A (en) * | 2021-11-11 | 2024-06-25 | 에스 앤드 시이 일렉트릭 캄파니 | Vacuum Breaker Anti-Splash Attenuator |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2156450A (en) * | 1937-06-07 | 1939-05-02 | Gen Electric | Apparatus for interrupting an electric circuit |
US2385008A (en) * | 1942-09-17 | 1945-09-18 | Westinghouse Electric Corp | Circuit interrupter |
US2406469A (en) * | 1942-11-11 | 1946-08-27 | Westinghouse Electric Corp | Circuit interrupter |
US2422569A (en) * | 1943-05-28 | 1947-06-17 | Westinghouse Electric Corp | Circuit interrupter |
-
1948
- 1948-07-30 US US41612A patent/US2539175A/en not_active Expired - Lifetime
-
1949
- 1949-07-28 GB GB19876/49A patent/GB668650A/en not_active Expired
- 1949-07-29 FR FR991488D patent/FR991488A/en not_active Expired
-
1951
- 1951-06-20 FR FR61791D patent/FR61791E/en not_active Expired
- 1951-06-20 GB GB14638/51A patent/GB696161A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR991488A (en) | 1951-10-05 |
US2539175A (en) | 1951-01-23 |
GB696161A (en) | 1953-08-26 |
GB668650A (en) | 1952-03-19 |
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