BE360745A - - Google Patents
Info
- Publication number
- BE360745A BE360745A BE360745DA BE360745A BE 360745 A BE360745 A BE 360745A BE 360745D A BE360745D A BE 360745DA BE 360745 A BE360745 A BE 360745A
- Authority
- BE
- Belgium
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
-
- 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
- H01H33/668—Means for obtaining or monitoring the vacuum
-
- 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
- H01H33/668—Means for obtaining or monitoring the vacuum
- H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US279156A US1733904A (en) | 1928-05-19 | 1928-05-19 | Circuit-interrupting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE360745A true BE360745A (en:Method) |
Family
ID=23067874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE360745D BE360745A (en:Method) | 1928-05-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1733904A (en:Method) |
| BE (1) | BE360745A (en:Method) |
| DE (1) | DE529303C (en:Method) |
| FR (1) | FR702873A (en:Method) |
| GB (1) | GB312085A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2793328A (en) * | 1953-12-14 | 1957-05-21 | Cutler Hammer Inc | Motor controller for use in explosive and corrosive atmospheres |
| US3090852A (en) * | 1960-02-11 | 1963-05-21 | Gen Electric | Gettering arrangement for a vacuum circuit interrupter |
-
0
- BE BE360745D patent/BE360745A/xx unknown
-
1928
- 1928-05-19 US US279156A patent/US1733904A/en not_active Expired - Lifetime
-
1929
- 1929-05-12 DE DEA57784D patent/DE529303C/de not_active Expired
- 1929-05-17 GB GB15494/29A patent/GB312085A/en not_active Expired
- 1929-05-17 FR FR702873D patent/FR702873A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB312085A (en) | 1930-10-17 |
| US1733904A (en) | 1929-10-29 |
| FR702873A (fr) | 1931-04-18 |
| DE529303C (de) | 1931-07-11 |