GB308611A - Improvements in and relating to vacuum switches - Google Patents
Improvements in and relating to vacuum switchesInfo
- Publication number
- GB308611A GB308611A GB9350/29A GB935029A GB308611A GB 308611 A GB308611 A GB 308611A GB 9350/29 A GB9350/29 A GB 9350/29A GB 935029 A GB935029 A GB 935029A GB 308611 A GB308611 A GB 308611A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- vacuum switches
- switches
- vacuum
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US264115A US1892538A (en) | 1928-03-23 | 1928-03-23 | Vacuum switch |
US264116A US1865274A (en) | 1928-03-23 | 1928-03-23 | Circuit interrupter |
US314352XA | 1928-06-25 | 1928-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB308611A true GB308611A (en) | 1930-07-22 |
Family
ID=31950480
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9350/29A Expired GB308611A (en) | 1928-03-23 | 1929-03-22 | Improvements in and relating to vacuum switches |
GB9586/29A Expired GB308654A (en) | 1928-03-23 | 1929-03-25 | Improvements in and relating to electric circuit interrupters |
GB19514/29A Expired GB314352A (en) | 1928-03-23 | 1929-06-25 | Improvements in and relating to vacuum switches |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9586/29A Expired GB308654A (en) | 1928-03-23 | 1929-03-25 | Improvements in and relating to electric circuit interrupters |
GB19514/29A Expired GB314352A (en) | 1928-03-23 | 1929-06-25 | Improvements in and relating to vacuum switches |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE552593C (en) |
GB (3) | GB308611A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920169A (en) * | 1957-02-11 | 1960-01-05 | Jennings Radio Mfg Corp | Vacuumized electric switch |
US2966569A (en) * | 1957-04-29 | 1960-12-27 | Jennings Radio Mfg Corp | Vacuum switch |
-
1929
- 1929-03-21 DE DEA57194D patent/DE552593C/en not_active Expired
- 1929-03-22 GB GB9350/29A patent/GB308611A/en not_active Expired
- 1929-03-22 DE DEA57240D patent/DE578577C/en not_active Expired
- 1929-03-25 GB GB9586/29A patent/GB308654A/en not_active Expired
- 1929-06-25 GB GB19514/29A patent/GB314352A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB314352A (en) | 1930-08-21 |
DE552593C (en) | 1932-06-15 |
GB308654A (en) | 1930-08-25 |
DE578577C (en) | 1933-06-15 |
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