CA408679A - Vapour electric device - Google Patents
Vapour electric deviceInfo
- Publication number
- CA408679A CA408679A CA408679A CA408679DA CA408679A CA 408679 A CA408679 A CA 408679A CA 408679 A CA408679 A CA 408679A CA 408679D A CA408679D A CA 408679DA CA 408679 A CA408679 A CA 408679A
- Authority
- CA
- Canada
- Prior art keywords
- electric device
- vapour electric
- vapour
- electric
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/28—Energising current supplied by discharge tube
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US271897A US2269842A (en) | 1939-05-05 | 1939-05-05 | Vapor electric device |
Publications (1)
Publication Number | Publication Date |
---|---|
CA408679A true CA408679A (en) | 1942-11-17 |
Family
ID=23037549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA408679A Expired CA408679A (en) | 1939-05-05 | Vapour electric device |
Country Status (3)
Country | Link |
---|---|
US (1) | US2269842A (en) |
CA (1) | CA408679A (en) |
DE (1) | DE921951C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874355A (en) * | 1957-01-02 | 1959-02-17 | Rca Corp | Pulse width modulation system |
-
0
- CA CA408679A patent/CA408679A/en not_active Expired
-
1939
- 1939-05-05 US US271897A patent/US2269842A/en not_active Expired - Lifetime
-
1940
- 1940-05-07 DE DES5173D patent/DE921951C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2269842A (en) | 1942-01-13 |
DE921951C (en) | 1955-01-07 |
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