Device for emergency hand operation with switching magnets
US6310530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F7/1607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for emergency hand operation has switching magnets with an armature that can be moved in the pole pipe to a final position by the force of a spring assembly, and can be moved against the spring force to a second final position by a magnetic field excitation. The device has a tensional member which can be axially displaced and moved by a manual actuating device. A carrier interacts with the armature to move the carrier against the spring force and to the second final position. The armature, the pole core, the spring assembly, the tensional member and the actuating device are combined to form a prefabricated component which can be inserted into the pole pipe via its inner open end and which can be connected to the pole pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.