FR27558E - Improvements to electrical switches - Google Patents
Improvements to electrical switchesInfo
- Publication number
- FR27558E FR27558E FR27558DA FR27558E FR 27558 E FR27558 E FR 27558E FR 27558D A FR27558D A FR 27558DA FR 27558 E FR27558 E FR 27558E
- Authority
- FR
- France
- Prior art keywords
- electrical switches
- switches
- electrical
- 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
-
- 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/57—Recuperation of liquid or gas
-
- 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
- H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US443440A US1537353A (en) | 1921-02-08 | 1921-02-08 | Electric switch |
US546880A US1620155A (en) | 1922-03-25 | 1922-03-25 | Attachment for oil switches |
Publications (1)
Publication Number | Publication Date |
---|---|
FR27558E true FR27558E (en) | 1924-07-31 |
Family
ID=31950824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR27558D Expired FR27558E (en) | 1921-02-08 | 1923-03-22 | Improvements to electrical switches |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR27558E (en) |
-
1923
- 1923-03-22 FR FR27558D patent/FR27558E/en not_active Expired
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