FR771353A - Switch refinements - Google Patents
Switch refinementsInfo
- Publication number
- FR771353A FR771353A FR771353DA FR771353A FR 771353 A FR771353 A FR 771353A FR 771353D A FR771353D A FR 771353DA FR 771353 A FR771353 A FR 771353A
- Authority
- FR
- France
- Prior art keywords
- refinements
- switch
- switch refinements
- 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
- H01H33/80—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
- H01H33/84—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 liquid, e.g. oil
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Removal Of Floating Material (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB10727/33A GB415522A (en) | 1933-04-10 | 1933-04-10 | Improvements relating to liquid-immersed electric circuit interrupters |
Publications (1)
Publication Number | Publication Date |
---|---|
FR771353A true FR771353A (en) | 1934-10-06 |
Family
ID=9973163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR771353D Expired FR771353A (en) | 1933-04-10 | 1934-04-07 | Switch refinements |
Country Status (3)
Country | Link |
---|---|
US (1) | US2056009A (en) |
FR (1) | FR771353A (en) |
GB (1) | GB415522A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2981815A (en) * | 1957-12-10 | 1961-04-25 | Westinghouse Electric Corp | Circuit interrupter |
DE1295049B (en) * | 1962-02-23 | 1969-05-14 | Calor Emag Elektrizitaets Ag | Electric circuit breaker |
-
1933
- 1933-04-10 GB GB10727/33A patent/GB415522A/en not_active Expired
-
1934
- 1934-04-05 US US719124A patent/US2056009A/en not_active Expired - Lifetime
- 1934-04-07 FR FR771353D patent/FR771353A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2056009A (en) | 1936-09-29 |
GB415522A (en) | 1934-08-30 |
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