FR49205E - Improvements to electrical switches - Google Patents
Improvements to electrical switchesInfo
- Publication number
- FR49205E FR49205E FR49205DA FR49205E FR 49205 E FR49205 E FR 49205E FR 49205D A FR49205D A FR 49205DA FR 49205 E FR49205 E FR 49205E
- 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
- H01H33/7015—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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR49205T | 1937-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR49205E true FR49205E (en) | 1938-12-07 |
Family
ID=8684415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR49205D Expired FR49205E (en) | 1937-08-02 | 1937-08-02 | Improvements to electrical switches |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR49205E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0283728A1 (en) * | 1987-02-26 | 1988-09-28 | Mitsubishi Denki Kabushiki Kaisha | Gas-blast load-break switch |
-
1937
- 1937-08-02 FR FR49205D patent/FR49205E/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0283728A1 (en) * | 1987-02-26 | 1988-09-28 | Mitsubishi Denki Kabushiki Kaisha | Gas-blast load-break switch |
US4829150A (en) * | 1987-02-26 | 1989-05-09 | Mitsubishi Denki Kabushiki Kaisha | Gas-blask load-break switch |
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